'[fFddlmZddlmZddlmZGddeZdS)) ChunkScore) deprecated)ParserIcFeZdZdZdZeddZdZdS) ChunkParserIa; A processing interface for identifying non-overlapping groups in unrestricted text. Typically, chunk parsers are used to find base syntactic constituents, such as base noun phrases. Unlike ``ParserI``, ``ChunkParserI`` guarantees that the ``parse()`` method will always generate a parse. ct)z Return the best chunk structure for the given tokens and return a tree. :param tokens: The list of (word, tag) tokens to be chunked. :type tokens: list(tuple) :rtype: Tree )NotImplementedError)selftokenss B/var/www/piapp/venv/lib/python3.11/site-packages/nltk/chunk/api.pyparsezChunkParserI.parses"###zUse accuracy(gold) instead.c,||S)N)accuracy)r golds r evaluatezChunkParserI.evaluate&s}}T"""rct}|D]=}||||>|S)a Score the accuracy of the chunker against the gold standard. Remove the chunking the gold standard text, rechunk it using the chunker, and return a ``ChunkScore`` object reflecting the performance of this chunk parser. :type gold: list(Tree) :param gold: The list of chunked sentences to score the chunker on. :rtype: ChunkScore )rscorer leaves)r r chunkscorecorrects r rzChunkParserI.accuracy*sS \\  D DG   Wdjj1A1A&B&B C C C CrN)__name__ __module__ __qualname____doc__r rrrrr rrsc $ $ $Z-..##/.#rrN)nltk.chunk.utilrnltk.internalsr nltk.parserrrrr r sq'&&&&&%%%%%%&&&&&7&&&&&r