Question: where did the song mares eat oats come from
[{'answer': 'English nursery rhyme', 'provenance': [{'wikipedia_id': '3439916', 'title': 'Mairzy Doats', 'start_paragraph_id': 6, 'start_character': 69, 'end_paragraph_id': 6, 'end_character': 90, 'bleu_score': 1.0, 'section': 'Section::::Meaning.\n'}]}, {'provenance': [{'wikipedia_id': '3439916', 'title': 'Mairzy Doats', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 290, 'bleu_score': 0.9611463610973231, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5967295149087565454}, 'section': 'Section::::Meaning.\n'}]}]