ROOT (token: short_text [lag_newlines/spaces] {pos_id})           
 ¦--COMMENT: # myf [0/0] {1}                                      
 ¦--COMMENT: #* @g [2/0] {2}                                      
 ¦--expr: norma [1/0] {3}                                         
 ¦   ¦--expr: norma [0/1] {5}                                     
 ¦   ¦   °--SYMBOL: norma [0/0] {4}                               
 ¦   ¦--LEFT_ASSIGN: <- [0/1] {6}                                 
 ¦   °--expr: funct [0/0] {7}                                     
 ¦       ¦--FUNCTION: funct [0/0] {8}                             
 ¦       ¦--'(': ( [0/0] {9}                                      
 ¦       ¦--SYMBOL_FORMALS: sampl [0/0] {10}                      
 ¦       ¦--EQ_FORMALS: = [0/0] {11}                              
 ¦       ¦--expr: 10 [0/0] {13}                                   
 ¦       ¦   °--NUM_CONST: 10 [0/0] {12}                          
 ¦       ¦--')': ) [0/1] {14}                                     
 ¦       °--expr: {
  d [0/0] {15}                               
 ¦           ¦--'{': { [0/2] {16}                                 
 ¦           ¦--expr: data  [1/2] {17}                            
 ¦           ¦   ¦--expr: data [0/1] {19}                         
 ¦           ¦   ¦   °--SYMBOL: data [0/0] {18}                   
 ¦           ¦   ¦--LEFT_ASSIGN: <- [0/1] {20}                    
 ¦           ¦   °--expr: rnorm [0/0] {21}                        
 ¦           ¦       ¦--expr: rnorm [0/0] {23}                    
 ¦           ¦       ¦   °--SYMBOL_FUNCTION_CALL: rnorm [0/0] {22}
 ¦           ¦       ¦--'(': ( [0/0] {24}                         
 ¦           ¦       ¦--expr: sampl [0/0] {26}                    
 ¦           ¦       ¦   °--SYMBOL: sampl [0/0] {25}              
 ¦           ¦       °--')': ) [0/0] {27}                         
 ¦           ¦--expr: mean( [1/0] {28}                            
 ¦           ¦   ¦--expr: mean [0/0] {30}                         
 ¦           ¦   ¦   °--SYMBOL_FUNCTION_CALL: mean [0/0] {29}     
 ¦           ¦   ¦--'(': ( [0/0] {31}                             
 ¦           ¦   ¦--expr: data [0/0] {33}                         
 ¦           ¦   ¦   °--SYMBOL: data [0/0] {32}                   
 ¦           ¦   °--')': ) [0/0] {34}                             
 ¦           °--'}': } [1/0] {35}                                 
 ¦--COMMENT: #* @p [2/0] {36}                                     
 °--expr: addTw [1/0] {37}                                        
     ¦--expr: addTw [0/1] {39}                                    
     ¦   °--SYMBOL: addTw [0/0] {38}                              
     ¦--LEFT_ASSIGN: <- [0/1] {40}                                
     °--expr: funct [0/0] {41}                                    
         ¦--FUNCTION: funct [0/0] {42}                            
         ¦--'(': ( [0/0] {43}                                     
         ¦--SYMBOL_FORMALS: a [0/0] {44}                          
         ¦--',': , [0/1] {45}                                     
         ¦--SYMBOL_FORMALS: b [0/0] {46}                          
         ¦--')': ) [0/1] {47}                                     
         °--expr: {
  a [0/0] {48}                               
             ¦--'{': { [0/2] {49}                                 
             ¦--expr: as.nu [1/0] {50}                            
             ¦   ¦--expr: as.nu [0/1] {51}                        
             ¦   ¦   ¦--expr: as.nu [0/0] {53}                    
             ¦   ¦   ¦   °--SYMBOL_FUNCTION_CALL: as.nu [0/0] {52}
             ¦   ¦   ¦--'(': ( [0/0] {54}                         
             ¦   ¦   ¦--expr: a [0/0] {56}                        
             ¦   ¦   ¦   °--SYMBOL: a [0/0] {55}                  
             ¦   ¦   °--')': ) [0/0] {57}                         
             ¦   ¦--'+': + [0/1] {58}                             
             ¦   °--expr: as.nu [0/0] {59}                        
             ¦       ¦--expr: as.nu [0/0] {61}                    
             ¦       ¦   °--SYMBOL_FUNCTION_CALL: as.nu [0/0] {60}
             ¦       ¦--'(': ( [0/0] {62}                         
             ¦       ¦--expr: b [0/0] {64}                        
             ¦       ¦   °--SYMBOL: b [0/0] {63}                  
             ¦       °--')': ) [0/0] {65}                         
             °--'}': } [1/0] {66}                                 
