Question: what is the gravity difference between earth and moon
[{'answer': '0.16 ɡ'}, {'provenance': [{'wikipedia_id': '8955537', 'title': 'Gravitation of the Moon', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 408, 'bleu_score': 0.8995638586002741, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10065493169814540853}, 'section': 'Section::::Abstract.'}]}]