Question: who does lucy hale play on pretty little liars
[{'answer': 'Aria Montgomery', 'provenance': [{'wikipedia_id': '19049170', 'title': 'Lucy Hale', 'start_paragraph_id': 1, 'start_character': 179, 'end_paragraph_id': 1, 'end_character': 194, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]