natural language toolkit combinatory categorial grammar c 20012023 nltk project graeme gange ggangecsse unimelb edu au url https www nltk org for license information see license txt combinatory categorial grammar for more information see nltkdoccontribccgccg pdf natural language toolkit combinatory categorial grammar c 2001 2023 nltk project graeme gange ggange csse unimelb edu au url https www nltk org for license information see license txt combinatory categorial grammar for more information see nltk doc contrib ccg ccg pdf
from nltk.ccg.chart import CCGChart, CCGChartParser, CCGEdge, CCGLeafEdge
from nltk.ccg.combinator import (
    BackwardApplication,
    BackwardBx,
    BackwardCombinator,
    BackwardComposition,
    BackwardSx,
    BackwardT,
    DirectedBinaryCombinator,
    ForwardApplication,
    ForwardCombinator,
    ForwardComposition,
    ForwardSubstitution,
    ForwardT,
    UndirectedBinaryCombinator,
    UndirectedComposition,
    UndirectedFunctionApplication,
    UndirectedSubstitution,
    UndirectedTypeRaise,
)
from nltk.ccg.lexicon import CCGLexicon