ROOT (token: short_text [lag_newlines/spaces] {pos_id})      
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   [2/0] {126}                                 
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  [1/0] {162}                             
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  [0/0] {177}                             
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) [0/0] {192}                              
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) [0/1] {202}                              
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 ¦   ¦--expr: 2 [0/0] {379}                                  
 ¦   ¦   °--NUM_CONST: 2 [0/0] {378}                         
 ¦   °--')': ) [0/0] {380}                                   
 ¦--COMMENT: # FIX [2/0] {381}                               
 ¦--expr: blew( [1/0] {382}                                  
 ¦   ¦--expr: blew [0/0] {384}                               
 ¦   ¦   °--SYMBOL_FUNCTION_CALL: blew [0/0] {383}           
 ¦   ¦--'(': ( [0/0] {385}                                   
 ¦   ¦--SYMBOL_SUB: y [0/1] {386}                            
 ¦   ¦--EQ_SUB: = [0/1] {387}                                
 ¦   ¦--expr: 2 [0/0] {389}                                  
 ¦   ¦   °--NUM_CONST: 2 [0/0] {388}                         
 ¦   ¦--',': , [0/1] {390}                                   
 ¦   ¦--expr: x %>% [0/0] {391}                              
 ¦   ¦   ¦--expr: x [0/1] {393}                              
 ¦   ¦   ¦   °--SYMBOL: x [0/0] {392}                        
 ¦   ¦   ¦--SPECIAL-PIPE: %>% [0/7] {394}                    
 ¦   ¦   °--expr: c() [1/0] {395}                            
 ¦   ¦       ¦--expr: c [0/0] {397}                          
 ¦   ¦       ¦   °--SYMBOL_FUNCTION_CALL: c [0/0] {396}      
 ¦   ¦       ¦--'(': ( [0/0] {398}                           
 ¦   ¦       °--')': ) [0/0] {399}                           
 ¦   °--')': ) [0/0] {400}                                   
 ¦--expr: {a %> [3/0] {401}                                  
 ¦   ¦--'{': { [0/0] {402}                                   
 ¦   ¦--expr: a %>% [0/0] {403}                              
 ¦   ¦   ¦--expr: a [0/1] {406}                              
 ¦   ¦   ¦   °--SYMBOL: a [0/0] {405}                        
 ¦   ¦   ¦--SPECIAL-PIPE: %>% [0/1] {407}                    
 ¦   ¦   ¦--expr: c [0/1] {409}                              
 ¦   ¦   ¦   °--SYMBOL: c [0/0] {408}                        
 ¦   ¦   ¦--'+': + [0/0] {410}                               
 ¦   ¦   °--expr: 1 [0/0] {412}                              
 ¦   ¦       °--NUM_CONST: 1 [0/0] {411}                     
 ¦   °--'}': } [0/0] {413}                                   
 ¦--expr: b %>% [3/0] {414}                                  
 ¦   ¦--expr: b [0/1] {418}                                  
 ¦   ¦   °--SYMBOL: b [0/0] {417}                            
 ¦   ¦--SPECIAL-PIPE: %>% [0/2] {419}                        
 ¦   ¦--expr: f() [1/1] {420}                                
 ¦   ¦   ¦--expr: f [0/0] {422}                              
 ¦   ¦   ¦   °--SYMBOL_FUNCTION_CALL: f [0/0] {421}          
 ¦   ¦   ¦--'(': ( [0/0] {423}                               
 ¦   ¦   °--')': ) [0/0] {424}                               
 ¦   ¦--SPECIAL-PIPE: %>% [0/1] {425}                        
 ¦   ¦--COMMENT: # nev [0/2] {426}                           
 ¦   ¦--expr: k() [1/1] {427}                                
 ¦   ¦   ¦--expr: k [0/0] {429}                              
 ¦   ¦   ¦   °--SYMBOL_FUNCTION_CALL: k [0/0] {428}          
 ¦   ¦   ¦--'(': ( [0/0] {430}                               
 ¦   ¦   °--')': ) [0/0] {431}                               
 ¦   ¦--SPECIAL-PIPE: %>% [0/2] {432}                        
 ¦   °--expr: x() [1/0] {433}                                
 ¦       ¦--expr: x [0/0] {435}                              
 ¦       ¦   °--SYMBOL_FUNCTION_CALL: x [0/0] {434}          
 ¦       ¦--'(': ( [0/0] {436}                               
 ¦       °--')': ) [0/0] {437}                               
 ¦--COMMENT: # lin [3/0] {438}                               
 ¦--expr: c(
da [1/0] {439}                                 
 ¦   ¦--expr: c [0/0] {441}                                  
 ¦   ¦   °--SYMBOL_FUNCTION_CALL: c [0/0] {440}              
 ¦   ¦--'(': ( [0/0] {442}                                   
 ¦   ¦--expr: data  [1/0] {443}                              
 ¦   ¦   ¦--expr: data [0/1] {446}                           
 ¦   ¦   ¦   °--SYMBOL: data [0/0] {445}                     
 ¦   ¦   ¦--SPECIAL-PIPE: %>% [0/2] {447}                    
 ¦   ¦   ¦--expr: filte [1/1] {448}                          
 ¦   ¦   ¦   ¦--expr: filte [0/0] {450}                      
 ¦   ¦   ¦   ¦   °--SYMBOL_FUNCTION_CALL: filte [0/0] {449}  
 ¦   ¦   ¦   ¦--'(': ( [0/0] {451}                           
 ¦   ¦   ¦   ¦--expr: bar [0/0] {453}                        
 ¦   ¦   ¦   ¦   °--SYMBOL: bar [0/0] {452}                  
 ¦   ¦   ¦   °--')': ) [0/0] {454}                           
 ¦   ¦   ¦--SPECIAL-PIPE: %>% [0/1] {455}                    
 ¦   ¦   °--expr: {
    [0/0] {456}                         
 ¦   ¦       ¦--'{': { [0/4] {457}                           
 ¦   ¦       ¦--expr: cor(. [1/2] {458}                      
 ¦   ¦       ¦   ¦--expr: cor [0/0] {460}                    
 ¦   ¦       ¦   ¦   °--SYMBOL_FUNCTION_CALL: cor [0/0] {459}
 ¦   ¦       ¦   ¦--'(': ( [0/0] {461}                       
 ¦   ¦       ¦   ¦--expr: .$col [0/0] {462}                  
 ¦   ¦       ¦   ¦   ¦--expr: . [0/0] {464}                  
 ¦   ¦       ¦   ¦   ¦   °--SYMBOL: . [0/0] {463}            
 ¦   ¦       ¦   ¦   ¦--'$': $ [0/0] {465}                   
 ¦   ¦       ¦   ¦   °--SYMBOL: col1 [0/0] {466}             
 ¦   ¦       ¦   ¦--',': , [0/1] {467}                       
 ¦   ¦       ¦   ¦--expr: .$col [0/0] {468}                  
 ¦   ¦       ¦   ¦   ¦--expr: . [0/0] {470}                  
 ¦   ¦       ¦   ¦   ¦   °--SYMBOL: . [0/0] {469}            
 ¦   ¦       ¦   ¦   ¦--'$': $ [0/0] {471}                   
 ¦   ¦       ¦   ¦   °--SYMBOL: col2 [0/0] {472}             
 ¦   ¦       ¦   ¦--',': , [0/1] {473}                       
 ¦   ¦       ¦   ¦--SYMBOL_SUB: use [0/1] {474}              
 ¦   ¦       ¦   ¦--EQ_SUB: = [0/1] {475}                    
 ¦   ¦       ¦   ¦--expr: "comp [0/0] {477}                  
 ¦   ¦       ¦   ¦   °--STR_CONST: "comp [0/0] {476}         
 ¦   ¦       ¦   °--')': ) [0/0] {478}                       
 ¦   ¦       °--'}': } [1/0] {479}                           
 ¦   °--')': ) [1/0] {480}                                   
 ¦--expr: data  [2/0] {481}                                  
 ¦   ¦--expr: data [0/1] {484}                               
 ¦   ¦   °--SYMBOL: data [0/0] {483}                         
 ¦   ¦--SPECIAL-PIPE: %>% [0/2] {485}                        
 ¦   ¦--expr: filte [1/1] {486}                              
 ¦   ¦   ¦--expr: filte [0/0] {488}                          
 ¦   ¦   ¦   °--SYMBOL_FUNCTION_CALL: filte [0/0] {487}      
 ¦   ¦   ¦--'(': ( [0/0] {489}                               
 ¦   ¦   ¦--expr: bar [0/0] {491}                            
 ¦   ¦   ¦   °--SYMBOL: bar [0/0] {490}                      
 ¦   ¦   °--')': ) [0/0] {492}                               
 ¦   ¦--SPECIAL-PIPE: %>% [0/1] {493}                        
 ¦   °--expr: {
    [0/0] {494}                             
 ¦       ¦--'{': { [0/4] {495}                               
 ¦       ¦--expr: cor(. [1/2] {496}                          
 ¦       ¦   ¦--expr: cor [0/0] {498}                        
 ¦       ¦   ¦   °--SYMBOL_FUNCTION_CALL: cor [0/0] {497}    
 ¦       ¦   ¦--'(': ( [0/0] {499}                           
 ¦       ¦   ¦--expr: .$col [0/0] {500}                      
 ¦       ¦   ¦   ¦--expr: . [0/0] {502}                      
 ¦       ¦   ¦   ¦   °--SYMBOL: . [0/0] {501}                
 ¦       ¦   ¦   ¦--'$': $ [0/0] {503}                       
 ¦       ¦   ¦   °--SYMBOL: col1 [0/0] {504}                 
 ¦       ¦   ¦--',': , [0/1] {505}                           
 ¦       ¦   ¦--expr: .$col [0/0] {506}                      
 ¦       ¦   ¦   ¦--expr: . [0/0] {508}                      
 ¦       ¦   ¦   ¦   °--SYMBOL: . [0/0] {507}                
 ¦       ¦   ¦   ¦--'$': $ [0/0] {509}                       
 ¦       ¦   ¦   °--SYMBOL: col2 [0/0] {510}                 
 ¦       ¦   ¦--',': , [0/1] {511}                           
 ¦       ¦   ¦--SYMBOL_SUB: use [0/1] {512}                  
 ¦       ¦   ¦--EQ_SUB: = [0/1] {513}                        
 ¦       ¦   ¦--expr: "comp [0/0] {515}                      
 ¦       ¦   ¦   °--STR_CONST: "comp [0/0] {514}             
 ¦       ¦   °--')': ) [0/0] {516}                           
 ¦       °--'}': } [1/0] {517}                               
 ¦--COMMENT: # lin [2/0] {518}                               
 ¦--expr: c(
   [1/0] {519}                                 
 ¦   ¦--expr: c [0/0] {521}                                  
 ¦   ¦   °--SYMBOL_FUNCTION_CALL: c [0/0] {520}              
 ¦   ¦--'(': ( [0/2] {522}                                   
 ¦   ¦--expr: data  [1/0] {523}                              
 ¦   ¦   ¦--expr: data [0/1] {526}                           
 ¦   ¦   ¦   °--SYMBOL: data [0/0] {525}                     
 ¦   ¦   ¦--SPECIAL-PIPE: %>% [0/4] {527}                    
 ¦   ¦   ¦--expr: filte [1/1] {528}                          
 ¦   ¦   ¦   ¦--expr: filte [0/0] {530}                      
 ¦   ¦   ¦   ¦   °--SYMBOL_FUNCTION_CALL: filte [0/0] {529}  
 ¦   ¦   ¦   ¦--'(': ( [0/0] {531}                           
 ¦   ¦   ¦   ¦--expr: bar [0/0] {533}                        
 ¦   ¦   ¦   ¦   °--SYMBOL: bar [0/0] {532}                  
 ¦   ¦   ¦   °--')': ) [0/0] {534}                           
 ¦   ¦   ¦--SPECIAL-PIPE: %>% [0/4] {535}                    
 ¦   ¦   °--expr: {
    [1/0] {536}                         
 ¦   ¦       ¦--'{': { [0/6] {537}                           
 ¦   ¦       ¦--expr: cor(. [1/4] {538}                      
 ¦   ¦       ¦   ¦--expr: cor [0/0] {540}                    
 ¦   ¦       ¦   ¦   °--SYMBOL_FUNCTION_CALL: cor [0/0] {539}
 ¦   ¦       ¦   ¦--'(': ( [0/0] {541}                       
 ¦   ¦       ¦   ¦--expr: .$col [0/0] {542}                  
 ¦   ¦       ¦   ¦   ¦--expr: . [0/0] {544}                  
 ¦   ¦       ¦   ¦   ¦   °--SYMBOL: . [0/0] {543}            
 ¦   ¦       ¦   ¦   ¦--'$': $ [0/0] {545}                   
 ¦   ¦       ¦   ¦   °--SYMBOL: col1 [0/0] {546}             
 ¦   ¦       ¦   ¦--',': , [0/1] {547}                       
 ¦   ¦       ¦   ¦--expr: .$col [0/0] {548}                  
 ¦   ¦       ¦   ¦   ¦--expr: . [0/0] {550}                  
 ¦   ¦       ¦   ¦   ¦   °--SYMBOL: . [0/0] {549}            
 ¦   ¦       ¦   ¦   ¦--'$': $ [0/0] {551}                   
 ¦   ¦       ¦   ¦   °--SYMBOL: col2 [0/0] {552}             
 ¦   ¦       ¦   ¦--',': , [0/1] {553}                       
 ¦   ¦       ¦   ¦--SYMBOL_SUB: use [0/1] {554}              
 ¦   ¦       ¦   ¦--EQ_SUB: = [0/1] {555}                    
 ¦   ¦       ¦   ¦--expr: "comp [0/0] {557}                  
 ¦   ¦       ¦   ¦   °--STR_CONST: "comp [0/0] {556}         
 ¦   ¦       ¦   °--')': ) [0/0] {558}                       
 ¦   ¦       °--'}': } [1/0] {559}                           
 ¦   °--')': ) [1/0] {560}                                   
 ¦--expr: data  [2/0] {561}                                  
 ¦   ¦--expr: data [0/1] {564}                               
 ¦   ¦   °--SYMBOL: data [0/0] {563}                         
 ¦   ¦--SPECIAL-PIPE: %>% [0/2] {565}                        
 ¦   ¦--expr: filte [1/1] {566}                              
 ¦   ¦   ¦--expr: filte [0/0] {568}                          
 ¦   ¦   ¦   °--SYMBOL_FUNCTION_CALL: filte [0/0] {567}      
 ¦   ¦   ¦--'(': ( [0/0] {569}                               
 ¦   ¦   ¦--expr: bar [0/0] {571}                            
 ¦   ¦   ¦   °--SYMBOL: bar [0/0] {570}                      
 ¦   ¦   °--')': ) [0/0] {572}                               
 ¦   ¦--SPECIAL-PIPE: %>% [0/2] {573}                        
 ¦   °--expr: {
    [1/0] {574}                             
 ¦       ¦--'{': { [0/4] {575}                               
 ¦       ¦--expr: cor(. [1/2] {576}                          
 ¦       ¦   ¦--expr: cor [0/0] {578}                        
 ¦       ¦   ¦   °--SYMBOL_FUNCTION_CALL: cor [0/0] {577}    
 ¦       ¦   ¦--'(': ( [0/0] {579}                           
 ¦       ¦   ¦--expr: .$col [0/0] {580}                      
 ¦       ¦   ¦   ¦--expr: . [0/0] {582}                      
 ¦       ¦   ¦   ¦   °--SYMBOL: . [0/0] {581}                
 ¦       ¦   ¦   ¦--'$': $ [0/0] {583}                       
 ¦       ¦   ¦   °--SYMBOL: col1 [0/0] {584}                 
 ¦       ¦   ¦--',': , [0/1] {585}                           
 ¦       ¦   ¦--expr: .$col [0/0] {586}                      
 ¦       ¦   ¦   ¦--expr: . [0/0] {588}                      
 ¦       ¦   ¦   ¦   °--SYMBOL: . [0/0] {587}                
 ¦       ¦   ¦   ¦--'$': $ [0/0] {589}                       
 ¦       ¦   ¦   °--SYMBOL: col2 [0/0] {590}                 
 ¦       ¦   ¦--',': , [0/1] {591}                           
 ¦       ¦   ¦--SYMBOL_SUB: use [0/1] {592}                  
 ¦       ¦   ¦--EQ_SUB: = [0/1] {593}                        
 ¦       ¦   ¦--expr: "comp [0/0] {595}                      
 ¦       ¦   ¦   °--STR_CONST: "comp [0/0] {594}             
 ¦       ¦   °--')': ) [0/0] {596}                           
 ¦       °--'}': } [1/0] {597}                               
 ¦--COMMENT: # red [2/0] {598}                               
 ¦--expr: c(
   [1/0] {599}                                 
 ¦   ¦--expr: c [0/0] {601}                                  
 ¦   ¦   °--SYMBOL_FUNCTION_CALL: c [0/0] {600}              
 ¦   ¦--'(': ( [0/2] {602}                                   
 ¦   ¦--expr: data  [1/0] {603}                              
 ¦   ¦   ¦--expr: data [0/1] {606}                           
 ¦   ¦   ¦   °--SYMBOL: data [0/0] {605}                     
 ¦   ¦   ¦--SPECIAL-PIPE: %>% [0/4] {607}                    
 ¦   ¦   ¦--expr: filte [1/1] {608}                          
 ¦   ¦   ¦   ¦--expr: filte [0/0] {610}                      
 ¦   ¦   ¦   ¦   °--SYMBOL_FUNCTION_CALL: filte [0/0] {609}  
 ¦   ¦   ¦   ¦--'(': ( [0/0] {611}                           
 ¦   ¦   ¦   ¦--expr: bar [0/0] {613}                        
 ¦   ¦   ¦   ¦   °--SYMBOL: bar [0/0] {612}                  
 ¦   ¦   ¦   °--')': ) [0/0] {614}                           
 ¦   ¦   ¦--SPECIAL-PIPE: %>% [0/4] {615}                    
 ¦   ¦   °--expr: {
    [2/0] {616}                         
 ¦   ¦       ¦--'{': { [0/6] {617}                           
 ¦   ¦       ¦--expr: cor(. [1/4] {618}                      
 ¦   ¦       ¦   ¦--expr: cor [0/0] {620}                    
 ¦   ¦       ¦   ¦   °--SYMBOL_FUNCTION_CALL: cor [0/0] {619}
 ¦   ¦       ¦   ¦--'(': ( [0/0] {621}                       
 ¦   ¦       ¦   ¦--expr: .$col [0/0] {622}                  
 ¦   ¦       ¦   ¦   ¦--expr: . [0/0] {624}                  
 ¦   ¦       ¦   ¦   ¦   °--SYMBOL: . [0/0] {623}            
 ¦   ¦       ¦   ¦   ¦--'$': $ [0/0] {625}                   
 ¦   ¦       ¦   ¦   °--SYMBOL: col1 [0/0] {626}             
 ¦   ¦       ¦   ¦--',': , [0/1] {627}                       
 ¦   ¦       ¦   ¦--expr: .$col [0/0] {628}                  
 ¦   ¦       ¦   ¦   ¦--expr: . [0/0] {630}                  
 ¦   ¦       ¦   ¦   ¦   °--SYMBOL: . [0/0] {629}            
 ¦   ¦       ¦   ¦   ¦--'$': $ [0/0] {631}                   
 ¦   ¦       ¦   ¦   °--SYMBOL: col2 [0/0] {632}             
 ¦   ¦       ¦   ¦--',': , [0/1] {633}                       
 ¦   ¦       ¦   ¦--SYMBOL_SUB: use [0/1] {634}              
 ¦   ¦       ¦   ¦--EQ_SUB: = [0/1] {635}                    
 ¦   ¦       ¦   ¦--expr: "comp [0/0] {637}                  
 ¦   ¦       ¦   ¦   °--STR_CONST: "comp [0/0] {636}         
 ¦   ¦       ¦   °--')': ) [0/0] {638}                       
 ¦   ¦       °--'}': } [1/0] {639}                           
 ¦   °--')': ) [1/0] {640}                                   
 ¦--expr: data  [2/0] {641}                                  
 ¦   ¦--expr: data [0/1] {644}                               
 ¦   ¦   °--SYMBOL: data [0/0] {643}                         
 ¦   ¦--SPECIAL-PIPE: %>% [0/2] {645}                        
 ¦   ¦--expr: filte [1/1] {646}                              
 ¦   ¦   ¦--expr: filte [0/0] {648}                          
 ¦   ¦   ¦   °--SYMBOL_FUNCTION_CALL: filte [0/0] {647}      
 ¦   ¦   ¦--'(': ( [0/0] {649}                               
 ¦   ¦   ¦--expr: bar [0/0] {651}                            
 ¦   ¦   ¦   °--SYMBOL: bar [0/0] {650}                      
 ¦   ¦   °--')': ) [0/0] {652}                               
 ¦   ¦--SPECIAL-PIPE: %>% [0/2] {653}                        
 ¦   °--expr: {
    [2/0] {654}                             
 ¦       ¦--'{': { [0/4] {655}                               
 ¦       ¦--expr: cor(. [1/2] {656}                          
 ¦       ¦   ¦--expr: cor [0/0] {658}                        
 ¦       ¦   ¦   °--SYMBOL_FUNCTION_CALL: cor [0/0] {657}    
 ¦       ¦   ¦--'(': ( [0/0] {659}                           
 ¦       ¦   ¦--expr: .$col [0/0] {660}                      
 ¦       ¦   ¦   ¦--expr: . [0/0] {662}                      
 ¦       ¦   ¦   ¦   °--SYMBOL: . [0/0] {661}                
 ¦       ¦   ¦   ¦--'$': $ [0/0] {663}                       
 ¦       ¦   ¦   °--SYMBOL: col1 [0/0] {664}                 
 ¦       ¦   ¦--',': , [0/1] {665}                           
 ¦       ¦   ¦--expr: .$col [0/0] {666}                      
 ¦       ¦   ¦   ¦--expr: . [0/0] {668}                      
 ¦       ¦   ¦   ¦   °--SYMBOL: . [0/0] {667}                
 ¦       ¦   ¦   ¦--'$': $ [0/0] {669}                       
 ¦       ¦   ¦   °--SYMBOL: col2 [0/0] {670}                 
 ¦       ¦   ¦--',': , [0/1] {671}                           
 ¦       ¦   ¦--SYMBOL_SUB: use [0/1] {672}                  
 ¦       ¦   ¦--EQ_SUB: = [0/1] {673}                        
 ¦       ¦   ¦--expr: "comp [0/0] {675}                      
 ¦       ¦   ¦   °--STR_CONST: "comp [0/0] {674}             
 ¦       ¦   °--')': ) [0/0] {676}                           
 ¦       °--'}': } [1/0] {677}                               
 ¦--COMMENT: # bla [2/0] {678}                               
 ¦--expr: c(
   [1/0] {679}                                 
 ¦   ¦--expr: c [0/0] {681}                                  
 ¦   ¦   °--SYMBOL_FUNCTION_CALL: c [0/0] {680}              
 ¦   ¦--'(': ( [0/2] {682}                                   
 ¦   ¦--expr: data  [1/0] {683}                              
 ¦   ¦   ¦--expr: data [0/1] {686}                           
 ¦   ¦   ¦   °--SYMBOL: data [0/0] {685}                     
 ¦   ¦   ¦--SPECIAL-PIPE: %>% [0/4] {687}                    
 ¦   ¦   ¦--expr: filte [1/1] {688}                          
 ¦   ¦   ¦   ¦--expr: filte [0/0] {690}                      
 ¦   ¦   ¦   ¦   °--SYMBOL_FUNCTION_CALL: filte [0/0] {689}  
 ¦   ¦   ¦   ¦--'(': ( [0/0] {691}                           
 ¦   ¦   ¦   ¦--expr: bar [0/0] {693}                        
 ¦   ¦   ¦   ¦   °--SYMBOL: bar [0/0] {692}                  
 ¦   ¦   ¦   °--')': ) [0/0] {694}                           
 ¦   ¦   ¦--SPECIAL-PIPE: %>% [0/4] {695}                    
 ¦   ¦   ¦--COMMENT: # com [1/4] {696}                       
 ¦   ¦   °--expr: {
    [2/0] {697}                         
 ¦   ¦       ¦--'{': { [0/6] {698}                           
 ¦   ¦       ¦--expr: cor(. [1/4] {699}                      
 ¦   ¦       ¦   ¦--expr: cor [0/0] {701}                    
 ¦   ¦       ¦   ¦   °--SYMBOL_FUNCTION_CALL: cor [0/0] {700}
 ¦   ¦       ¦   ¦--'(': ( [0/0] {702}                       
 ¦   ¦       ¦   ¦--expr: .$col [0/0] {703}                  
 ¦   ¦       ¦   ¦   ¦--expr: . [0/0] {705}                  
 ¦   ¦       ¦   ¦   ¦   °--SYMBOL: . [0/0] {704}            
 ¦   ¦       ¦   ¦   ¦--'$': $ [0/0] {706}                   
 ¦   ¦       ¦   ¦   °--SYMBOL: col1 [0/0] {707}             
 ¦   ¦       ¦   ¦--',': , [0/1] {708}                       
 ¦   ¦       ¦   ¦--expr: .$col [0/0] {709}                  
 ¦   ¦       ¦   ¦   ¦--expr: . [0/0] {711}                  
 ¦   ¦       ¦   ¦   ¦   °--SYMBOL: . [0/0] {710}            
 ¦   ¦       ¦   ¦   ¦--'$': $ [0/0] {712}                   
 ¦   ¦       ¦   ¦   °--SYMBOL: col2 [0/0] {713}             
 ¦   ¦       ¦   ¦--',': , [0/1] {714}                       
 ¦   ¦       ¦   ¦--SYMBOL_SUB: use [0/1] {715}              
 ¦   ¦       ¦   ¦--EQ_SUB: = [0/1] {716}                    
 ¦   ¦       ¦   ¦--expr: "comp [0/0] {718}                  
 ¦   ¦       ¦   ¦   °--STR_CONST: "comp [0/0] {717}         
 ¦   ¦       ¦   °--')': ) [0/0] {719}                       
 ¦   ¦       °--'}': } [1/0] {720}                           
 ¦   °--')': ) [1/0] {721}                                   
 °--expr: data  [2/0] {722}                                  
     ¦--expr: data [0/1] {725}                               
     ¦   °--SYMBOL: data [0/0] {724}                         
     ¦--SPECIAL-PIPE: %>% [0/2] {726}                        
     ¦--expr: filte [1/1] {727}                              
     ¦   ¦--expr: filte [0/0] {729}                          
     ¦   ¦   °--SYMBOL_FUNCTION_CALL: filte [0/0] {728}      
     ¦   ¦--'(': ( [0/0] {730}                               
     ¦   ¦--expr: bar [0/0] {732}                            
     ¦   ¦   °--SYMBOL: bar [0/0] {731}                      
     ¦   °--')': ) [0/0] {733}                               
     ¦--SPECIAL-PIPE: %>% [0/2] {734}                        
     ¦--COMMENT: # com [1/2] {735}                           
     °--expr: {
    [2/0] {736}                             
         ¦--'{': { [0/4] {737}                               
         ¦--expr: cor(. [1/2] {738}                          
         ¦   ¦--expr: cor [0/0] {740}                        
         ¦   ¦   °--SYMBOL_FUNCTION_CALL: cor [0/0] {739}    
         ¦   ¦--'(': ( [0/0] {741}                           
         ¦   ¦--expr: .$col [0/0] {742}                      
         ¦   ¦   ¦--expr: . [0/0] {744}                      
         ¦   ¦   ¦   °--SYMBOL: . [0/0] {743}                
         ¦   ¦   ¦--'$': $ [0/0] {745}                       
         ¦   ¦   °--SYMBOL: col1 [0/0] {746}                 
         ¦   ¦--',': , [0/1] {747}                           
         ¦   ¦--expr: .$col [0/0] {748}                      
         ¦   ¦   ¦--expr: . [0/0] {750}                      
         ¦   ¦   ¦   °--SYMBOL: . [0/0] {749}                
         ¦   ¦   ¦--'$': $ [0/0] {751}                       
         ¦   ¦   °--SYMBOL: col2 [0/0] {752}                 
         ¦   ¦--',': , [0/1] {753}                           
         ¦   ¦--SYMBOL_SUB: use [0/1] {754}                  
         ¦   ¦--EQ_SUB: = [0/1] {755}                        
         ¦   ¦--expr: "comp [0/0] {757}                      
         ¦   ¦   °--STR_CONST: "comp [0/0] {756}             
         ¦   °--')': ) [0/0] {758}                           
         °--'}': } [1/0] {759}                               
