new_contents: #!/usr/bin/env python3
  
  import sys
  from nltk.tree import Tree
  
  def sort_nps():
      with open(sys.argv[1]) as np_doc:
          for line in np_doc:
              t = Tree.fromstring(line)
              width = len(t)
              if width <= 3:
                  print(line, end = "")
  
  sort_nps()
subject: Add script for getting rid of too wide NPs