Question: who plays eric on once upon a time
[{'answer': 'Supernatural', 'provenance': [{'wikipedia_id': '41677882', 'title': 'Gil McKinney', 'start_paragraph_id': 1, 'start_character': 376, 'end_paragraph_id': 1, 'end_character': 388, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Mark Gilbert McKinney', 'provenance': [{'wikipedia_id': '41677882', 'title': 'Gil McKinney', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 21, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '41677882', 'title': 'Gil McKinney', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 409, 'bleu_score': 0.9716239638199891, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7115701947898396721}, 'section': 'Section::::Abstract.'}]}]