Question: who sang the sun has got his hat on
[{'answer': 'Noel Gay', 'provenance': [{'wikipedia_id': '4812540', 'title': 'The Sun Has Got His Hat On', 'start_paragraph_id': 1, 'start_character': 42, 'end_paragraph_id': 1, 'end_character': 50, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Ralph Butler', 'provenance': [{'wikipedia_id': '4812540', 'title': 'The Sun Has Got His Hat On', 'start_paragraph_id': 1, 'start_character': 55, 'end_paragraph_id': 1, 'end_character': 67, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4812540', 'title': 'The Sun Has Got His Hat On', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 342, 'bleu_score': 0.970362113628587, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16517445989466915952}, 'section': 'Section::::Abstract.'}]}]