Question: who played dr mark sloan on grey's anatomy
[{'answer': 'Eric Dane', 'provenance': [{'wikipedia_id': '3201113', 'title': 'Eric Dane', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 9, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3201113', 'title': 'Eric Dane', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 487, 'bleu_score': 0.8136267111737251, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18182281869282781599}, 'section': 'Section::::Abstract.'}]}]