Question: who plays barney's father on how i met your mother
[{'answer': 'John Lithgow', 'provenance': [{'wikipedia_id': '31119550', 'title': 'Legendaddy', 'start_paragraph_id': 4, 'start_character': 278, 'end_paragraph_id': 4, 'end_character': 290, 'bleu_score': 1.0, 'section': 'Section::::Plot.\n'}]}, {'provenance': [{'wikipedia_id': '31119550', 'title': 'Legendaddy', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 832, 'bleu_score': 0.9866213202385071, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2999393836974848828}, 'section': 'Section::::Plot.\n'}]}]