Question: largest moon in the solar system compared to earth
[{'answer': 'Ganymede', 'provenance': [{'wikipedia_id': '594550', 'title': 'List of Solar System objects by size', 'start_paragraph_id': 13, 'start_character': 207, 'end_paragraph_id': 13, 'end_character': 215, 'bleu_score': 1.0, 'section': 'Section::::List of objects by radius.:Larger than 400 km.\n'}]}]