Question: who came up with the theory of gravity
[{'answer': 'Sir Isaac Newton'}, {'provenance': [{'wikipedia_id': '4387043', 'title': 'History of gravitational theory', 'start_paragraph_id': 24, 'start_character': 0, 'end_paragraph_id': 24, 'end_character': 487, 'bleu_score': 0.841946931735685, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14211644919495922642}, 'section': "Section::::The Renaissance and Enlightenment.:Newton's law.\n"}]}]