Question: how many seats does a cessna 172 have
[{'answer': 'four', 'provenance': [{'wikipedia_id': '173462', 'title': 'Cessna 172', 'start_paragraph_id': 1, 'start_character': 38, 'end_paragraph_id': 1, 'end_character': 42, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '173462', 'title': 'Cessna 172', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 202, 'bleu_score': 0.943604326170661, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2556154755724799773}, 'section': 'Section::::Abstract.'}]}]