ROOT (token: short_text [lag_newlines/spaces] {pos_id})
 ¦--COMMENT: #' Hi [0/0] {1}                           
 ¦--COMMENT: #' [1/0] {2}                              
 ¦--COMMENT: #' x [1/0] {3}                            
 ¦--COMMENT: #' @e [1/0] {4}                           
 ¦--COMMENT: #' a  [1/0] {5}                           
 ¦--COMMENT: #'    [1/0] {6}                           
 ¦--COMMENT: #'    [1/0] {7}                           
 ¦--COMMENT: #' \d [1/0] {8}                          
 ¦--COMMENT: #' st [1/0] {9}                           
 ¦--COMMENT: #'    [1/0] {10}                          
 ¦--COMMENT: #'    [1/0] {11}                          
 ¦--COMMENT: #' )% [1/0] {12}                          
 ¦--COMMENT: #'    [1/0] {13}                          
 ¦--COMMENT: #' } [1/0] {14}                           
 ¦--COMMENT: #' ca [1/0] {15}                          
 ¦--COMMENT: #' @e [1/0] {16}                          
 °--expr: NULL [1/0] {18}                              
     °--NULL_CONST: NULL [0/0] {17}                    
