ROOT (token: short_text [lag_newlines/spaces] {pos_id})
 °--expr:  [0/0] {1}                                   
     ¦--expr:  [0/0] {3}                               
     ¦   °--SYMBOL_FUNCTION_CALL: c [0/0] {2}          
     ¦--'(': ( [0/0] {4}                               
     ¦--expr:  [0/0] {5}                               
     ¦   ¦--expr:  [0/0] {7}                           
     ¦   ¦   °--SYMBOL_FUNCTION_CALL: call [0/0] {6}   
     ¦   ¦--'(': ( [0/0] {8}                           
     ¦   ¦--expr:  [0/0] {10}                          
     ¦   ¦   °--NUM_CONST: 2 [0/0] {9}                 
     ¦   °--')': ) [0/0] {11}                          
     ¦--',': , [0/1] {12}                              
     ¦--expr:  [0/0] {14}                              
     ¦   °--NUM_CONST: 1 [0/0] {13}                    
     ¦--',': , [0/1] {15}                              
     ¦--COMMENT: # com [0/0] {16}                      
     ¦--expr:  [1/1] {18}                              
     ¦   °--NUM_CONST: 29 [0/0] {17}                   
     °--')': ) [1/0] {19}                              
