Question: who played carrie mother in the original movie
[{'answer': 'Piper Laurie', 'provenance': [{'wikipedia_id': '4899791', 'title': 'Carrie (1976 film)', 'start_paragraph_id': 1, 'start_character': 406, 'end_paragraph_id': 1, 'end_character': 418, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4899791', 'title': 'Carrie (1976 film)', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 42, 'bleu_score': 0.6147881529512641, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12164209393786485212}, 'section': 'Section::::Cast.\n'}]}]