Question: who plays janet in rocky horror picture show
[{'answer': 'Susan Sarandon', 'provenance': [{'wikipedia_id': '25491', 'title': 'The Rocky Horror Picture Show', 'start_paragraph_id': 1, 'start_character': 541, 'end_paragraph_id': 1, 'end_character': 555, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]