Question: who plays arias brother in pretty little liars
[{'answer': 'Cody Allen Christian', 'provenance': [{'wikipedia_id': '33833990', 'title': 'Cody Christian', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '33833990', 'title': 'Cody Christian', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 260, 'bleu_score': 0.9042878500265971, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13047340898743271566}, 'section': 'Section::::Abstract.'}]}]