Question: who plays will in fresh prince of bel air
[{'answer': 'Will Smith', 'provenance': [{'wikipedia_id': '167046', 'title': 'The Fresh Prince of Bel-Air', 'start_paragraph_id': 1, 'start_character': 135, 'end_paragraph_id': 1, 'end_character': 145, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]