Question: who does christina marry on grey's anatomy
[{'answer': 'Owen Hunt', 'provenance': [{'wikipedia_id': '7687021', 'title': 'Cristina Yang', 'start_paragraph_id': 1, 'start_character': 874, 'end_paragraph_id': 1, 'end_character': 883, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '7687021', 'title': 'Cristina Yang', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 897, 'bleu_score': 0.9247483186224531, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2735788996567283679}, 'section': 'Section::::Abstract.'}]}]