Question: what is the shape of the ohio flag called
[{'answer': 'swallowtail', 'provenance': [{'wikipedia_id': '423942', 'title': 'Flag of Ohio', 'start_paragraph_id': 1, 'start_character': 71, 'end_paragraph_id': 1, 'end_character': 82, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '423942', 'title': 'Flag of Ohio', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 327, 'bleu_score': 0.923768200931469, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11149937866841781083}, 'section': 'Section::::Abstract.'}]}]