Question: who wrote the song it ain't over til it's over
[{'answer': 'American musician Lenny Kravitz', 'provenance': [{'wikipedia_id': '9170920', 'title': "It Ain't Over 'til It's Over", 'start_paragraph_id': 1, 'start_character': 76, 'end_paragraph_id': 1, 'end_character': 107, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '9170920', 'title': "It Ain't Over 'til It's Over", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 913, 'bleu_score': 0.9599431814702941, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14040497736565013178}, 'section': 'Section::::Abstract.'}]}]