ROOT (token: short_text [lag_newlines/spaces] {pos_id})
 ¦--expr: if (X [0/0] {1}                              
 ¦   ¦--IF: if [0/1] {2}                               
 ¦   ¦--'(': ( [0/0] {3}                               
 ¦   ¦--expr: X [0/0] {5}                              
 ¦   ¦   °--SYMBOL: X [0/0] {4}                        
 ¦   ¦--')': ) [0/2] {6}                               
 ¦   °--expr: retur [1/0] {7}                          
 ¦       ¦--expr: retur [0/0] {9}                      
 ¦       ¦   °--SYMBOL_FUNCTION_CALL: retur [0/0] {8}  
 ¦       ¦--'(': ( [0/0] {10}                          
 ¦       ¦--expr: TRUE [0/0] {12}                      
 ¦       ¦   °--NUM_CONST: TRUE [0/0] {11}             
 ¦       °--')': ) [0/0] {13}                          
 °--expr: if (X [2/0] {14}                             
     ¦--IF: if [0/1] {15}                              
     ¦--'(': ( [0/0] {16}                              
     ¦--expr: X [0/0] {18}                             
     ¦   °--SYMBOL: X [0/0] {17}                       
     ¦--')': ) [0/1] {19}                              
     °--expr: retur [0/0] {20}                         
         ¦--expr: retur [0/0] {22}                     
         ¦   °--SYMBOL_FUNCTION_CALL: retur [0/0] {21} 
         ¦--'(': ( [0/0] {23}                          
         ¦--expr: FALSE [0/0] {25}                     
         ¦   °--NUM_CONST: FALSE [0/0] {24}            
         °--')': ) [0/0] {26}                          
