ROOT (token: short_text [lag_newlines/spaces] {pos_id})
 °--expr:  [0/0] {1}                                   
     ¦--expr:  [0/0] {3}                               
     ¦   °--SYMBOL: a [0/0] {2}                        
     ¦--LEFT_ASSIGN: <- [0/0] {4}                      
     °--expr:  [0/0] {5}                               
         ¦--FUNCTION: funct [0/0] {6}                  
         ¦--'(': ( [0/0] {7}                           
         ¦--')': ) [0/0] {8}                           
         °--expr:  [0/0] {9}                           
             ¦--'{': { [0/20] {10}                     
             ¦--expr:  [1/0] {11}                      
             ¦   ¦--expr:  [0/0] {13}                  
             ¦   ¦   °--NUM_CONST: 1 [0/0] {12}        
             ¦   ¦--'+': + [0/0] {14}                  
             ¦   °--expr:  [0/0] {16}                  
             ¦       °--NUM_CONST: 1 [0/0] {15}        
             ¦--expr:  [1/4] {16.9}                    
             ¦   ¦--expr:  [0/0] {18}                  
             ¦   ¦   °--SYMBOL: d [0/0] {17}           
             ¦   ¦--EQ_ASSIGN: = [0/0] {19}            
             ¦   °--expr:  [0/0] {21}                  
             ¦       °--NUM_CONST: 3 [0/0] {20}        
             °--'}': } [1/0] {22}                      
