Question: who sang still crazy after all these years
[{'answer': 'Paul Simon', 'provenance': [{'wikipedia_id': '43225759', 'title': 'Still Crazy After All These Years (song)', 'start_paragraph_id': 1, 'start_character': 80, 'end_paragraph_id': 1, 'end_character': 90, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '43225759', 'title': 'Still Crazy After All These Years (song)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 382, 'bleu_score': 0.9720210313175831, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14296558664171730099}, 'section': 'Section::::Abstract.'}]}]