Question: what is denny's real name from grey's anatomy
[{'answer': 'Jeffrey Dean Morgan', 'provenance': [{'wikipedia_id': '7687022', 'title': 'Izzie Stevens', 'start_paragraph_id': 4, 'start_character': 873, 'end_paragraph_id': 4, 'end_character': 892, 'bleu_score': 1.0, 'section': 'Section::::Storylines.\n'}]}, {'provenance': [{'wikipedia_id': '7687022', 'title': 'Izzie Stevens', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 1305, 'bleu_score': 0.9910512291909551, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15626308980421603700}, 'section': 'Section::::Storylines.\n'}]}]