Question: how long does it take for the tide to come in
[{'answer': '6 - hour'}, {'provenance': [{'wikipedia_id': '2759662', 'title': 'Tide clock', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 814, 'bleu_score': 0.969607525075692, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3164018631005177587}, 'section': 'Section::::Abstract.'}]}]