ROOT (token: short_text [lag_newlines/spaces] {pos_id})
 ¦--COMMENT: #!/us [0/0] {1}                           
 ¦--COMMENT: #!/us [1/0] {2}                           
 ¦--expr:  [1/0] {3}                                   
 ¦   ¦--expr:  [0/1] {5}                               
 ¦   ¦   °--SYMBOL: a [0/0] {4}                        
 ¦   ¦--LEFT_ASSIGN: <- [0/1] {6}                      
 ¦   °--expr:  [0/0] {8}                               
 ¦       °--NUM_CONST: 3 [0/0] {7}                     
 ¦--COMMENT: #!/us [2/0] {9}                           
 ¦--expr:  [1/0] {10}                                  
 ¦   ¦--expr:  [0/1] {12}                              
 ¦   ¦   °--SYMBOL: dd [0/0] {11}                      
 ¦   ¦--LEFT_ASSIGN: <- [0/1] {13}                     
 ¦   °--expr:  [0/0] {15}                              
 ¦       °--NUM_CONST: 33 [0/0] {14}                   
 ¦--COMMENT: #!/us [1/0] {16}                          
 ¦--expr:  [1/0] {17}                                  
 ¦   ¦--expr:  [0/0] {19}                              
 ¦   ¦   °--SYMBOL_FUNCTION_CALL: c [0/0] {18}         
 ¦   ¦--'(': ( [0/0] {20}                              
 ¦   °--')': ) [0/0] {21}                              
 °--COMMENT: #!NEE [1/0] {22}                          
