Question: where is the center of gravity in a triangle
[{'answer': 'Euler line', 'provenance': [{'wikipedia_id': '187926', 'title': 'Centroid', 'start_paragraph_id': 56, 'start_character': 34, 'end_paragraph_id': 56, 'end_character': 44, 'bleu_score': 1.0, 'section': 'Section::::Locating.:Of a triangle.\n'}]}, {'provenance': [{'wikipedia_id': '187926', 'title': 'Centroid', 'start_paragraph_id': 17, 'start_character': 0, 'end_paragraph_id': 17, 'end_character': 155, 'bleu_score': 0.514787172001696, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9257394300271999442}, 'section': 'Section::::Examples.\n'}]}]