Question: who plays penny's father on big bang
[{'answer': 'Carradine', 'provenance': [{'wikipedia_id': '884488', 'title': 'Keith Carradine', 'start_paragraph_id': 0, 'start_character': 6, 'end_paragraph_id': 0, 'end_character': 15, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '884488', 'title': 'Keith Carradine', 'start_paragraph_id': 20, 'start_character': 0, 'end_paragraph_id': 20, 'end_character': 993, 'bleu_score': 0.9390100316642731, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16528084270164488956}, 'section': 'Section::::Career.:Television.\n'}]}]