Question: actor who plays happy on sons of anarchy
[{'answer': 'David M. Labrava', 'provenance': [{'wikipedia_id': '28828223', 'title': 'David Labrava', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 16, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '28828223', 'title': 'David Labrava', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 201, 'bleu_score': 0.8935248372106961, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4211719728848430307}, 'section': 'Section::::Abstract.'}]}]