Question: who produced the fresh prince of bel air theme song
[{'answer': 'Townes', 'provenance': [{'wikipedia_id': '17880671', 'title': 'The Fresh Prince of Bel-Air (song)', 'start_paragraph_id': 2, 'start_character': 227, 'end_paragraph_id': 2, 'end_character': 233, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]