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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 get_word_level_vocab(self):
 """Provides word level vocabulary Returns ------- Vocab Word level vocabulary """


        def simple_tokenize(source_str, token_delim=' ', seq_delim='\n'):
            return list(filter(None, re.split(token_delim + '|' + seq_delim, source_str)))

        return VocabProvider._create_squad_vocab(simple_tokenize, self._dataset)