Question: who is callie dating on grey's anatomy
[{'answer': 'Arizona Robbins', 'provenance': [{'wikipedia_id': '7687028', 'title': 'Callie Torres', 'start_paragraph_id': 2, 'start_character': 325, 'end_paragraph_id': 2, 'end_character': 340, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '7687028', 'title': 'Callie Torres', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 1382, 'bleu_score': 0.9908043535876511, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11491143726736720577}, 'section': 'Section::::Storylines.\n'}]}]