Question: when did the song age of aquarius come out
[{'answer': '1969', 'provenance': [{'wikipedia_id': '1680716', 'title': 'Aquarius/Let the Sunshine In', 'start_paragraph_id': 1, 'start_character': 458, 'end_paragraph_id': 1, 'end_character': 462, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1680716', 'title': 'Aquarius/Let the Sunshine In', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 832, 'bleu_score': 0.9687635332632951, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5179444425128982120}, 'section': 'Section::::Abstract.'}]}]