Question: what law describes how a planet orbits the sun
[{'answer': 'laws of planetary motion', 'provenance': [{'wikipedia_id': '17553', 'title': "Kepler's laws of planetary motion", 'start_paragraph_id': 0, 'start_character': 9, 'end_paragraph_id': 0, 'end_character': 33, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '17553', 'title': "Kepler's laws of planetary motion", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 121, 'bleu_score': 0.9021315316859231, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11004984669901550572}, 'section': 'Section::::Abstract.'}]}]