ROOT (token: short_text [lag_newlines/spaces] {pos_id})
 ¦--expr:  [0/0] {1}                                   
 ¦   ¦--expr:  [0/0] {3}                               
 ¦   ¦   °--SYMBOL_FUNCTION_CALL: call [0/0] {2}       
 ¦   ¦--'(': ( [0/2] {4}                               
 ¦   ¦--expr:  [1/0] {6}                               
 ¦   ¦   °--NUM_CONST: 2 [0/0] {5}                     
 ¦   ¦--',': , [0/2] {7}                               
 ¦   ¦--expr:  [1/0] {9}                               
 ¦   ¦   °--NUM_CONST: 3 [0/0] {8}                     
 ¦   °--')': ) [1/0] {10}                              
 ¦--expr:  [2/0] {11}                                  
 ¦   ¦--expr:  [0/0] {13}                              
 ¦   ¦   °--SYMBOL_FUNCTION_CALL: switc [0/0] {12}     
 ¦   ¦--'(': ( [0/0] {14}                              
 ¦   ¦--expr:  [0/0] {16}                              
 ¦   ¦   °--SYMBOL: abc [0/0] {15}                     
 ¦   ¦--',': , [0/2] {17}                              
 ¦   ¦--expr:  [1/0] {19}                              
 ¦   ¦   °--SYMBOL: wei9 [0/0] {18}                    
 ¦   °--')': ) [1/0] {20}                              
 ¦--expr:  [2/0] {21}                                  
 ¦   ¦--expr:  [0/0] {23}                              
 ¦   ¦   °--SYMBOL_FUNCTION_CALL: switc [0/0] {22}     
 ¦   ¦--'(': ( [0/0] {24}                              
 ¦   ¦--expr:  [0/0] {26}                              
 ¦   ¦   °--SYMBOL: abc [0/0] {25}                     
 ¦   ¦--',': , [0/2] {27}                              
 ¦   ¦--expr:  [1/0] {29}                              
 ¦   ¦   °--SYMBOL: wei9 [0/0] {28}                    
 ¦   °--')': ) [1/0] {30}                              
 ¦--expr:  [2/0] {31}                                  
 ¦   ¦--expr:  [0/0] {33}                              
 ¦   ¦   °--SYMBOL_FUNCTION_CALL: if_el [0/0] {32}     
 ¦   ¦--'(': ( [0/0] {34}                              
 ¦   ¦--expr:  [0/0] {36}                              
 ¦   ¦   °--SYMBOL: a [0/0] {35}                       
 ¦   ¦--',': , [0/2] {37}                              
 ¦   ¦--expr:  [1/0] {39}                              
 ¦   ¦   °--SYMBOL: c [0/0] {38}                       
 ¦   ¦--',': , [0/1] {40}                              
 ¦   ¦--expr:  [0/0] {42}                              
 ¦   ¦   °--SYMBOL: v [0/0] {41}                       
 ¦   °--')': ) [1/0] {43}                              
 °--expr:  [2/0] {44}                                  
     ¦--expr:  [0/0] {46}                              
     ¦   °--SYMBOL_FUNCTION_CALL: ifels [0/0] {45}     
     ¦--'(': ( [0/0] {47}                              
     ¦--expr:  [0/0] {49}                              
     ¦   °--SYMBOL: x [0/0] {48}                       
     ¦--',': , [0/2] {50}                              
     ¦--expr:  [1/0] {52}                              
     ¦   °--SYMBOL: y [0/0] {51}                       
     ¦--',': , [0/1] {53}                              
     ¦--expr:  [0/0] {55}                              
     ¦   °--SYMBOL: z [0/0] {54}                       
     °--')': ) [1/0] {56}                              
