Question: who was the actress that played rizzo in grease
[{'answer': 'Stockard Channing', 'provenance': [{'wikipedia_id': '536178', 'title': 'Stockard Channing', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 17, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '536178', 'title': 'Stockard Channing', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 481, 'bleu_score': 0.785541270205645, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14138137404670480629}, 'section': 'Section::::Abstract.'}]}]