Question: who plays chris keller on one tree hill
[{'answer': 'Tyler James Hilton', 'provenance': [{'wikipedia_id': '1918401', 'title': 'Tyler Hilton', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 18, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1918401', 'title': 'Tyler Hilton', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 293, 'bleu_score': 0.9560167778278961, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17115074738215490854}, 'section': 'Section::::Abstract.'}]}]