Question: who is the actor that plays venus on sons of anarchy
[{'answer': 'Walton Sanders Goggins Jr.', 'provenance': [{'wikipedia_id': '2601410', 'title': 'Walton Goggins', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 26, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]