text: # Natural Language Toolkit: Combinatory Categorial Grammar
  #
  # Copyright (C) 2001-2019 NLTK Project
  # Author: Graeme Gange <ggange@csse.unimelb.edu.au>
  # URL: <http://nltk.org/>
  # For license information, see LICENSE.TXT
  
  """
  Combinatory Categorial Grammar.
  
  For more information see nltk/doc/contrib/ccg/ccg.pdf
  """
  
  from nltk.ccg.combinator import (
      UndirectedBinaryCombinator,
      DirectedBinaryCombinator,
      ForwardCombinator,
      BackwardCombinator,
      UndirectedFunctionApplication,
      ForwardApplication,
      BackwardApplication,
      UndirectedComposition,
      ForwardComposition,
      BackwardComposition,
      BackwardBx,
      UndirectedSubstitution,
      ForwardSubstitution,
      BackwardSx,
      UndirectedTypeRaise,
      ForwardT,
      BackwardT,
  )
  from nltk.ccg.chart import CCGEdge, CCGLeafEdge, CCGChartParser, CCGChart
  from nltk.ccg.lexicon import CCGLexicon
  