def iob_sents(self, fileids=None, tagset=None):
        self._require(self.WORDS, self.POS, self.CHUNK)
        def get_iob_words(grid):
            return self._get_iob_words(grid, tagset)
        return LazyMap(get_iob_words, self._grids(fileids))

    #/////////////////////////////////////////////////////////////////
    # Grid Reading
    #/////////////////////////////////////////////////////////////////
:return: a list of lists of word/tag/IOB tuples
dataset/ETHPy150Open nltk/nltk/nltk/corpus/reader/conll.py/ConllCorpusReader.iob_sents