Question: who created the song somewhere over the rainbow
[{'answer': 'Harold Arlen', 'provenance': [{'wikipedia_id': '475235', 'title': 'Over the Rainbow', 'start_paragraph_id': 1, 'start_character': 43, 'end_paragraph_id': 1, 'end_character': 55, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Yip Harburg', 'provenance': [{'wikipedia_id': '475235', 'title': 'Over the Rainbow', 'start_paragraph_id': 1, 'start_character': 71, 'end_paragraph_id': 1, 'end_character': 82, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '475235', 'title': 'Over the Rainbow', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 290, 'bleu_score': 0.6950912918651201, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5718393722179697851}, 'section': 'Section::::Abstract.'}]}]