Question: who played brad in the original rocky horror picture show
[{'answer': 'Barry Bostwick', 'provenance': [{'wikipedia_id': '25491', 'title': 'The Rocky Horror Picture Show', 'start_paragraph_id': 1, 'start_character': 561, 'end_paragraph_id': 1, 'end_character': 575, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '25491', 'title': 'The Rocky Horror Picture Show', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 710, 'bleu_score': 0.813126122270841, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10438791018526562767}, 'section': 'Section::::Abstract.'}]}]