Sentence: Holmes lit a pipe.
            S
   _________|___
  |             VP
  |      _______|___        
  |     |           NP      
  |     |        ___|___    
  NP    |       |       NP  
  |     |       |       |   
  N     V      Det      N   
  |     |       |       |
holmes lit      a      pipe

Noun Phrase Chunks
holmes
pipe