Question: who is the voice of steve on american dad
[{'answer': 'Scott Grimes', 'provenance': [{'wikipedia_id': '4087406', 'title': 'Steve Smith (American Dad!)', 'start_paragraph_id': 1, 'start_character': 113, 'end_paragraph_id': 1, 'end_character': 125, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4087406', 'title': 'Steve Smith (American Dad!)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 262, 'bleu_score': 0.8977528478480281, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8141389617393470090}, 'section': 'Section::::Abstract.'}]}]