ROOT (token: short_text [lag_newlines/spaces] {pos_id})
 ¦--expr:  [0/3] {1}                                   
 ¦   ¦--'(': ( [0/0] {2}                               
 ¦   ¦--expr:  [0/0] {3}                               
 ¦   ¦   ¦--'(': ( [0/0] {4}                           
 ¦   ¦   ¦--expr:  [0/0] {5}                           
 ¦   ¦   ¦   ¦--'(': ( [0/0] {6}                       
 ¦   ¦   ¦   ¦--expr:  [0/0] {7}                       
 ¦   ¦   ¦   ¦   ¦--'(': ( [0/0] {8}                   
 ¦   ¦   ¦   ¦   ¦--expr:  [0/0] {9}                   
 ¦   ¦   ¦   ¦   ¦   ¦--'(': ( [0/0] {10}              
 ¦   ¦   ¦   ¦   ¦   ¦--expr:  [1/7] {12}              
 ¦   ¦   ¦   ¦   ¦   ¦   °--NUM_CONST: 1 [0/0] {11}    
 ¦   ¦   ¦   ¦   ¦   °--')': ) [1/0] {13}              
 ¦   ¦   ¦   ¦   °--')': ) [0/0] {14}                  
 ¦   ¦   ¦   °--')': ) [0/0] {15}                      
 ¦   ¦   °--')': ) [0/0] {16}                          
 ¦   °--')': ) [0/0] {17}                              
 °--expr:  [2/0] {18}                                  
     ¦--'(': ( [0/0] {19}                              
     ¦--expr:  [0/0] {20}                              
     ¦   ¦--'(': ( [0/0] {21}                          
     ¦   ¦--expr:  [0/0] {22}                          
     ¦   ¦   ¦--'(': ( [0/0] {23}                      
     ¦   ¦   ¦--expr:  [1/0] {25}                      
     ¦   ¦   ¦   °--NUM_CONST: 2 [0/0] {24}            
     ¦   ¦   °--')': ) [1/0] {26}                      
     ¦   °--')': ) [0/0] {27}                          
     °--')': ) [0/0] {28}                              
