Question: who sang i only have eyes for you first
[{'answer': 'Dick Powell', 'provenance': [{'wikipedia_id': '5815185', 'title': 'I Only Have Eyes for You', 'start_paragraph_id': 1, 'start_character': 162, 'end_paragraph_id': 1, 'end_character': 173, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Ruby Keeler', 'provenance': [{'wikipedia_id': '5815185', 'title': 'I Only Have Eyes for You', 'start_paragraph_id': 1, 'start_character': 178, 'end_paragraph_id': 1, 'end_character': 189, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5815185', 'title': 'I Only Have Eyes for You', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 412, 'bleu_score': 0.8481222857684521, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16525572090263278604}, 'section': 'Section::::Abstract.'}]}]