nltk.ProbabilisticDependencyGrammar.contains¶

ProbabilisticDependencyGrammar.contains(head, mod)[source]¶

Return True if this DependencyGrammar contains a DependencyProduction mapping ‘head’ to ‘mod’.

Parameters:	head (str) – A head word. mod (str) – A mod word, to test as a modifier of ‘head’.
Return type:	bool