ROOT (token: short_text [lag_newlines/spaces] {pos_id})
 ¦--expr: this( [0/0] {1}                              
 ¦   ¦--expr: this [0/0] {3}                           
 ¦   ¦   °--SYMBOL_FUNCTION_CALL: this [0/0] {2}       
 ¦   ¦--'(': ( [0/0] {4}                               
 ¦   °--')': ) [0/0] {5}                               
 ¦--COMMENT: #> is [1/0] {6}                           
 ¦--expr: this( [3/1] {7}                              
 ¦   ¦--expr: this [0/0] {9}                           
 ¦   ¦   °--SYMBOL_FUNCTION_CALL: this [0/0] {8}       
 ¦   ¦--'(': ( [0/0] {10}                              
 ¦   °--')': ) [0/0] {11}                              
 ¦--COMMENT: #> is [0/0] {12}                          
 ¦--expr: this( [2/0] {13}                             
 ¦   ¦--expr: this [0/0] {15}                          
 ¦   ¦   °--SYMBOL_FUNCTION_CALL: this [0/0] {14}      
 ¦   ¦--'(': ( [0/0] {16}                              
 ¦   °--')': ) [0/0] {17}                              
 °--COMMENT: # > n [1/0] {18}                          
