Question: who plays the son of lucifer in supernatural
[{'answer': 'Mark Ross Pellegrino', 'provenance': [{'wikipedia_id': '6081298', 'title': 'Mark Pellegrino', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '6081298', 'title': 'Mark Pellegrino', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 218, 'bleu_score': 0.8457139786709751, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16200376257622876744}, 'section': 'Section::::Abstract.'}]}]