ROOT (token: short_text [lag_newlines/spaces] {pos_id})
 ¦--COMMENT: #A co [0/0] {1}                           
 ¦--expr: a <-  [1/0] {2}                              
 ¦   ¦--expr: a [0/1] {4}                              
 ¦   ¦   °--SYMBOL: a [0/0] {3}                        
 ¦   ¦--LEFT_ASSIGN: <- [0/1] {5}                      
 ¦   °--expr: funct [0/0] {6}                          
 ¦       ¦--FUNCTION: funct [0/0] {7}                  
 ¦       ¦--'(': ( [0/0] {8}                           
 ¦       ¦--')': ) [0/1] {9}                           
 ¦       °--expr: {

} [0/0] {10}                    
 ¦           ¦--'{': { [0/0] {11}                      
 ¦           °--'}': } [2/0] {12}                      
 ¦--COMMENT: #+ ch [2/0] {13}                          
 ¦--expr: "chun [1/0] {15}                             
 ¦   °--STR_CONST: "chun [0/0] {14}                    
 ¦--COMMENT: #- ch [2/0] {16}                          
 ¦--expr: call( [1/0] {17}                             
 ¦   ¦--expr: call [0/0] {19}                          
 ¦   ¦   °--SYMBOL_FUNCTION_CALL: call [0/0] {18}      
 ¦   ¦--'(': ( [0/0] {20}                              
 ¦   ¦--expr: 2 [0/0] {22}                             
 ¦   ¦   °--NUM_CONST: 2 [0/0] {21}                    
 ¦   ¦--',': , [0/1] {23}                              
 ¦   ¦--expr: 3 [0/0] {25}                             
 ¦   ¦   °--NUM_CONST: 3 [0/0] {24}                    
 ¦   °--')': ) [0/0] {26}                              
 °--COMMENT: #21 [1/0] {27}                            
