Question: when did the first moon landing take place
[{'answer': '13 September 1959', 'provenance': [{'wikipedia_id': '1558077', 'title': 'Moon landing', 'start_paragraph_id': 1, 'start_character': 213, 'end_paragraph_id': 1, 'end_character': 230, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1558077', 'title': 'Moon landing', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 230, 'bleu_score': 0.692851436387763, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12278158880293020065}, 'section': 'Section::::Abstract.'}]}]