Question: how many lines of symmetry are there in a equilateral triangle
[{'answer': '3'}, {'answer': '3 lines of reflection and rotational symmetry'}, {'provenance': [{'wikipedia_id': '173285', 'title': 'Equilateral triangle', 'start_paragraph_id': 80, 'start_character': 0, 'end_paragraph_id': 80, 'end_character': 194, 'bleu_score': 0.9402297675816911, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1157083035552970584}, 'section': 'Section::::Other properties.\n'}]}, {'provenance': [{'wikipedia_id': '173285', 'title': 'Equilateral triangle', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1157083035552970584}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '173285', 'title': 'Equilateral triangle', 'section': 'Section::::Other properties.\n', 'start_paragraph_id': 80, 'start_character': 0, 'end_paragraph_id': 80, 'end_character': 139, 'bleu_score': 1.0}]}]