ROOT (token: short_text [lag_newlines/spaces] {pos_id})   
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 ¦   ¦   °--SYMBOL: range [0/0] {2}                       
 ¦   ¦--'[': [ [0/0] {4}                                  
 ¦   ¦--expr: tag = [0/0] {5}                             
 ¦   ¦   ¦--expr: tag = [0/1] {6}                         
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 ¦   ¦   ¦   ¦   °--SYMBOL: tag [0/0] {7}                 
 ¦   ¦   ¦   ¦--EQ: == [0/1] {9}                          
 ¦   ¦   ¦   °--expr: "non_ [0/0] {11}                    
 ¦   ¦   ¦       °--STR_CONST: "non_ [0/0] {10}           
 ¦   ¦   ¦--AND: & [0/1] {12}                             
 ¦   ¦   °--expr: str_d [0/0] {13}                        
 ¦   ¦       ¦--expr: str_d [0/0] {15}                    
 ¦   ¦       ¦   °--SYMBOL_FUNCTION_CALL: str_d [0/0] {14}
 ¦   ¦       ¦--'(': ( [0/0] {16}                         
 ¦   ¦       ¦--expr: text [0/0] {18}                     
 ¦   ¦       ¦   °--SYMBOL: text [0/0] {17}               
 ¦   ¦       ¦--',': , [0/1] {19}                         
 ¦   ¦       ¦--expr: ";" [0/0] {21}                      
 ¦   ¦       ¦   °--STR_CONST: ";" [0/0] {20}             
 ¦   ¦       °--')': ) [0/0] {22}                         
 ¦   ¦--',': , [0/0] {23}                                 
 ¦   ¦--expr: text  [1/0] {24}                            
 ¦   ¦   ¦--expr: text [0/1] {26}                         
 ¦   ¦   ¦   °--SYMBOL: text [0/0] {25}                   
 ¦   ¦   ¦--LEFT_ASSIGN: := [0/1] {27}                    
 ¦   ¦   °--expr: str_r [0/0] {28}                        
 ¦   ¦       ¦--expr: str_r [0/0] {30}                    
 ¦   ¦       ¦   °--SYMBOL_FUNCTION_CALL: str_r [0/0] {29}
 ¦   ¦       ¦--'(': ( [0/0] {31}                         
 ¦   ¦       ¦--expr: text [0/0] {33}                     
 ¦   ¦       ¦   °--SYMBOL: text [0/0] {32}               
 ¦   ¦       ¦--',': , [0/1] {34}                         
 ¦   ¦       ¦--expr: ";" [0/0] {36}                      
 ¦   ¦       ¦   °--STR_CONST: ";" [0/0] {35}             
 ¦   ¦       ¦--',': , [0/1] {37}                         
 ¦   ¦       ¦--expr: "\n" [0/0] {39}                    
 ¦   ¦       ¦   °--STR_CONST: "\n" [0/0] {38}           
 ¦   ¦       °--')': ) [0/0] {40}                         
 ¦   °--']': ] [0/0] {41}                                 
 ¦--expr: fak[a [2/0] {42}                                
 ¦   ¦--expr: fak [0/0] {44}                              
 ¦   ¦   °--SYMBOL: fak [0/0] {43}                        
 ¦   ¦--'[': [ [0/0] {45}                                 
 ¦   ¦--expr: a [0/0] {47}                                
 ¦   ¦   °--SYMBOL: a [0/0] {46}                          
 ¦   ¦--',': , [0/1] {48}                                 
 ¦   ¦--expr: b [0/0] {50}                                
 ¦   ¦   °--SYMBOL: b [0/0] {49}                          
 ¦   °--']': ] [0/0] {51}                                 
 ¦--expr: fac[a [2/0] {52}                                
 ¦   ¦--expr: fac [0/0] {54}                              
 ¦   ¦   °--SYMBOL: fac [0/0] {53}                        
 ¦   ¦--'[': [ [0/0] {55}                                 
 ¦   ¦--expr: a [0/0] {57}                                
 ¦   ¦   °--SYMBOL: a [0/0] {56}                          
 ¦   ¦--',': , [0/4] {58}                                 
 ¦   ¦--expr: b [1/0] {60}                                
 ¦   ¦   °--SYMBOL: b [0/0] {59}                          
 ¦   °--']': ] [0/0] {61}                                 
 ¦--expr: fac[
 [2/0] {62}                               
 ¦   ¦--expr: fac [0/0] {64}                              
 ¦   ¦   °--SYMBOL: fac [0/0] {63}                        
 ¦   ¦--'[': [ [0/2] {65}                                 
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 ¦   ¦--',': , [0/2] {68}                                 
 ¦   ¦--expr: b [1/2] {70}                                
 ¦   ¦   °--SYMBOL: b [0/0] {69}                          
 ¦   °--']': ] [1/0] {71}                                 
 ¦--expr: fac[
 [2/0] {72}                               
 ¦   ¦--expr: fac [0/0] {74}                              
 ¦   ¦   °--SYMBOL: fac [0/0] {73}                        
 ¦   ¦--'[': [ [0/2] {75}                                 
 ¦   ¦--',': , [1/1] {76}                                 
 ¦   ¦--expr: `:`(a [0/0] {77}                            
 ¦   ¦   ¦--expr: `:` [0/0] {79}                          
 ¦   ¦   ¦   °--SYMBOL_FUNCTION_CALL: `:` [0/0] {78}      
 ¦   ¦   ¦--'(': ( [0/0] {80}                             
 ¦   ¦   ¦--SYMBOL_SUB: a [0/1] {81}                      
 ¦   ¦   ¦--EQ_SUB: = [0/1] {82}                          
 ¦   ¦   ¦--expr: b [0/0] {84}                            
 ¦   ¦   ¦   °--SYMBOL: b [0/0] {83}                      
 ¦   ¦   °--')': ) [0/0] {85}                             
 ¦   °--']': ] [0/0] {86}                                 
 ¦--expr: fac[
 [2/0] {87}                               
 ¦   ¦--expr: fac [0/0] {89}                              
 ¦   ¦   °--SYMBOL: fac [0/0] {88}                        
 ¦   ¦--'[': [ [0/2] {90}                                 
 ¦   ¦--',': , [1/1] {91}                                 
 ¦   ¦--expr: `:`(a [0/0] {92}                            
 ¦   ¦   ¦--expr: `:` [0/0] {94}                          
 ¦   ¦   ¦   °--SYMBOL_FUNCTION_CALL: `:` [0/0] {93}      
 ¦   ¦   ¦--'(': ( [0/0] {95}                             
 ¦   ¦   ¦--SYMBOL_SUB: a [0/1] {96}                      
 ¦   ¦   ¦--EQ_SUB: = [0/1] {97}                          
 ¦   ¦   ¦--expr: b [0/0] {99}                            
 ¦   ¦   ¦   °--SYMBOL: b [0/0] {98}                      
 ¦   ¦   °--')': ) [0/0] {100}                            
 ¦   °--']': ] [1/0] {101}                                
 °--expr: fac[, [2/0] {102}                               
     ¦--expr: fac [0/0] {104}                             
     ¦   °--SYMBOL: fac [0/0] {103}                       
     ¦--'[': [ [0/0] {105}                                
     ¦--',': , [0/1] {106}                                
     ¦--expr: `:`(a [0/0] {107}                           
     ¦   ¦--expr: `:` [0/0] {109}                         
     ¦   ¦   °--SYMBOL_FUNCTION_CALL: `:` [0/0] {108}     
     ¦   ¦--'(': ( [0/0] {110}                            
     ¦   ¦--SYMBOL_SUB: a [0/1] {111}                     
     ¦   ¦--EQ_SUB: = [0/1] {112}                         
     ¦   ¦--expr: c [0/0] {114}                           
     ¦   ¦   °--SYMBOL: c [0/0] {113}                     
     ¦   °--')': ) [0/0] {115}                            
     °--']': ] [1/0] {116}                                
