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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def dataset_iterator(self, file_path: str) -> Iterator[OntonotesSentence]: """ An iterator over the entire dataset, yielding all sentences processed. """

        for conll_file in self.dataset_path_iterator(file_path):
            yield from self.sentence_iterator(conll_file)