Question: how many lines of symmetry does hexagon have
[{'answer': 'six', 'provenance': [{'wikipedia_id': '59733', 'title': 'Hexagon', 'start_paragraph_id': 1, 'start_character': 46, 'end_paragraph_id': 1, 'end_character': 49, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '59733', 'title': 'Hexagon', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 722, 'bleu_score': 0.9021789697222191, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16485228626763295804}, 'section': 'Section::::Regular hexagon.\n'}]}]