:jb>ddlmZddlmZddlmZGddeZy)) ChunkScore) deprecated)ParserIc8eZdZdZdZeddZdZy) 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 c/home/mcse/projects/srt_converter/srt-converter-venv/lib/python3.12/site-packages/nltk/chunk/api.pyparsezChunkParserI.parses "##zUse accuracy(gold) instead.c$|j|S)N)accuracy)r golds r evaluatezChunkParserI.evaluate&s}}T""rct}|D]1}|j||j|j3|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*sB \  DG   Wdjj1A&B C DrN)__name__ __module__ __qualname____doc__r rrrrr rrs+ $-.#/#rrN)nltk.chunk.utilrnltk.internalsr nltk.parserrrrr r s'%&7&r