Question: what year did the song maggie may come out
[{'answer': '1971', 'provenance': [{'wikipedia_id': '971057', 'title': 'Maggie May', 'start_paragraph_id': 1, 'start_character': 164, 'end_paragraph_id': 1, 'end_character': 168, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '971057', 'title': 'Maggie May', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 168, 'bleu_score': 0.535206608427166, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2601704906011679369}, 'section': 'Section::::Abstract.'}]}]