Question: who played the little girl in the original exorcist
[{'answer': 'Linda Denise Blair', 'provenance': [{'wikipedia_id': '375074', 'title': 'Linda Blair', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 18, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '375074', 'title': 'Linda Blair', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 298, 'bleu_score': 0.7421775143040851, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16889903882115983119}, 'section': 'Section::::Abstract.'}]}]