ROOT (token: short_text [lag_newlines/spaces] {pos_id})
 ¦--expr: if (T [0/0] {1}                              
 ¦   ¦--IF: if [0/1] {2}                               
 ¦   ¦--'(': ( [0/0] {3}                               
 ¦   ¦--expr: TRUE [0/0] {5}                           
 ¦   ¦   °--NUM_CONST: TRUE [0/0] {4}                  
 ¦   ¦--')': ) [0/1] {6}                               
 ¦   ¦--expr: c(
   [0/1] {7}                         
 ¦   ¦   ¦--expr: c [0/0] {9}                          
 ¦   ¦   ¦   °--SYMBOL_FUNCTION_CALL: c [0/0] {8}      
 ¦   ¦   ¦--'(': ( [0/2] {10}                          
 ¦   ¦   ¦--expr: 2 [1/0] {12}                         
 ¦   ¦   ¦   °--NUM_CONST: 2 [0/0] {11}                
 ¦   ¦   °--')': ) [1/0] {13}                          
 ¦   ¦--ELSE: else [0/1] {14}                          
 ¦   °--expr: c(
   [0/0] {15}                        
 ¦       ¦--expr: c [0/0] {17}                         
 ¦       ¦   °--SYMBOL_FUNCTION_CALL: c [0/0] {16}     
 ¦       ¦--'(': ( [0/2] {18}                          
 ¦       ¦--expr: 1 [1/0] {20}                         
 ¦       ¦   °--NUM_CONST: 1 [0/0] {19}                
 ¦       °--')': ) [1/0] {21}                          
 ¦--expr: if (T [2/0] {22}                             
 ¦   ¦--IF: if [0/1] {23}                              
 ¦   ¦--'(': ( [0/0] {24}                              
 ¦   ¦--expr: TRUE [0/0] {26}                          
 ¦   ¦   °--NUM_CONST: TRUE [0/0] {25}                 
 ¦   ¦--')': ) [0/1] {27}                              
 ¦   ¦--expr: c(
   [0/1] {28}                        
 ¦   ¦   ¦--expr: c [0/0] {30}                         
 ¦   ¦   ¦   °--SYMBOL_FUNCTION_CALL: c [0/0] {29}     
 ¦   ¦   ¦--'(': ( [0/2] {31}                          
 ¦   ¦   ¦--expr: 2 [1/0] {33}                         
 ¦   ¦   ¦   °--NUM_CONST: 2 [0/0] {32}                
 ¦   ¦   °--')': ) [1/0] {34}                          
 ¦   ¦--ELSE: else [0/1] {35}                          
 ¦   °--expr: c( #  [0/0] {36}                         
 ¦       ¦--expr: c [0/0] {38}                         
 ¦       ¦   °--SYMBOL_FUNCTION_CALL: c [0/0] {37}     
 ¦       ¦--'(': ( [0/1] {39}                          
 ¦       ¦--COMMENT: # not [0/2] {40}                  
 ¦       ¦--expr: 1 [1/0] {42}                         
 ¦       ¦   °--NUM_CONST: 1 [0/0] {41}                
 ¦       °--')': ) [1/0] {43}                          
 °--expr: if (T [2/0] {44}                             
     ¦--IF: if [0/1] {45}                              
     ¦--'(': ( [0/0] {46}                              
     ¦--expr: TRUE [0/0] {48}                          
     ¦   °--NUM_CONST: TRUE [0/0] {47}                 
     ¦--')': ) [0/1] {49}                              
     ¦--expr: c(
   [0/1] {50}                        
     ¦   ¦--expr: c [0/0] {52}                         
     ¦   ¦   °--SYMBOL_FUNCTION_CALL: c [0/0] {51}     
     ¦   ¦--'(': ( [0/2] {53}                          
     ¦   ¦--expr: 2 [1/1] {55}                         
     ¦   ¦   °--NUM_CONST: 2 [0/0] {54}                
     ¦   ¦--COMMENT: # als [0/0] {56}                  
     ¦   °--')': ) [1/0] {57}                          
     ¦--ELSE: else [0/1] {58}                          
     °--expr: c(
   [0/0] {59}                        
         ¦--expr: c [0/0] {61}                         
         ¦   °--SYMBOL_FUNCTION_CALL: c [0/0] {60}     
         ¦--'(': ( [0/2] {62}                          
         ¦--expr: 1 [1/0] {64}                         
         ¦   °--NUM_CONST: 1 [0/0] {63}                
         °--')': ) [1/0] {65}                          
