Question: which of jupiter's moons is the largest in the solar system
[{'answer': 'Ganymede', 'provenance': [{'wikipedia_id': '575613', 'title': 'Moons of Jupiter', 'start_paragraph_id': 4, 'start_character': 134, 'end_paragraph_id': 4, 'end_character': 142, 'bleu_score': 1.0, 'section': 'Section::::Characteristics.\n'}]}, {'provenance': [{'wikipedia_id': '575613', 'title': 'Moons of Jupiter', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 682, 'bleu_score': 0.8482291633812751, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16751301071572533823}, 'section': 'Section::::Characteristics.\n'}]}]