Question: when was the last trip to the moon made
[{'answer': '14 December 2013', 'provenance': [{'wikipedia_id': '1558077', 'title': 'Moon landing', 'start_paragraph_id': 2, 'start_character': 248, 'end_paragraph_id': 2, 'end_character': 264, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1558077', 'title': 'Moon landing', 'start_paragraph_id': 116, 'start_character': 0, 'end_paragraph_id': 116, 'end_character': 145, 'bleu_score': 0.822850021833836, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13059421349306962044}, 'section': "Section::::21st century uncrewed soft landings.:Chang'e 3 (China).\n"}]}]