Question: who does julie walters play in harry potter
[{'answer': 'Molly Weasley', 'provenance': [{'wikipedia_id': '169143', 'title': 'Julie Walters', 'start_paragraph_id': 2, 'start_character': 941, 'end_paragraph_id': 2, 'end_character': 954, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '169143', 'title': 'Julie Walters', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 765, 'bleu_score': 0.658490944600789, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14705080110506017722}, 'section': 'Section::::Abstract.'}]}]