Question: who plays rafael barba on law and order
[{'answer': 'Raúl Eduardo Esparza', 'provenance': [{'wikipedia_id': '6924576', 'title': 'Raúl Esparza', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '6924576', 'title': 'Raúl Esparza', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 760, 'bleu_score': 0.761415656105844, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14095443415784477708}, 'section': 'Section::::Abstract.'}]}]