Question: who sang dream a little dream of me first
[{'answer': 'Ozzie Nelson', 'provenance': [{'wikipedia_id': '3580676', 'title': 'Dream a Little Dream of Me', 'start_paragraph_id': 1, 'start_character': 157, 'end_paragraph_id': 1, 'end_character': 169, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3580676', 'title': 'Dream a Little Dream of Me', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 399, 'bleu_score': 0.8510290689962241, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15787641914452800588}, 'section': 'Section::::Abstract.'}]}]