Question: who proved the sun is the center of the solar system
[{'answer': 'Galileo Galilei', 'provenance': [{'wikipedia_id': '244588', 'title': 'Heliocentrism', 'start_paragraph_id': 2, 'start_character': 301, 'end_paragraph_id': 2, 'end_character': 316, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '244588', 'title': 'Heliocentrism', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 373, 'bleu_score': 0.7627563400910461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 639374761318341304}, 'section': 'Section::::Abstract.'}]}]