Question: who played the father on father knows best
[{'answer': 'Robert Young', 'provenance': [{'wikipedia_id': '1014401', 'title': 'Father Knows Best', 'start_paragraph_id': 1, 'start_character': 49, 'end_paragraph_id': 1, 'end_character': 61, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1014401', 'title': 'Father Knows Best', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 513, 'bleu_score': 0.977139080690077, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2411869210695297481}, 'section': 'Section::::Radio.\n'}]}]