Question: who plays the voice of luanne on king of the hill
[{'answer': 'Brittany Murphy - Monjack'}, {'provenance': [{'wikipedia_id': '166777', 'title': 'Brittany Murphy', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 609, 'bleu_score': 0.9112008056554971, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11720028786965903465}, 'section': 'Section::::Abstract.'}]}]