Question: what song does audrey hepburn sing in breakfast at tiffanys
[{'answer': 'Moon River', 'provenance': [{'wikipedia_id': '534458', 'title': 'Moon River', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 10, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '534458', 'title': 'Moon River', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 302, 'bleu_score': 0.963949056609222, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8188188630467960583}, 'section': 'Section::::Abstract.'}]}]