Question: who played the elf princess in lord of the rings
[{'answer': 'Tyler', 'provenance': [{'wikipedia_id': '18589061', 'title': 'Liv Tyler', 'start_paragraph_id': 0, 'start_character': 4, 'end_paragraph_id': 0, 'end_character': 9, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]