Question: who played kevin costners dad in field of dreams
[{'answer': 'Dwier Brown', 'provenance': [{'wikipedia_id': '129524', 'title': 'Field of Dreams', 'start_paragraph_id': 19, 'start_character': 12, 'end_paragraph_id': 19, 'end_character': 23, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}, {'provenance': [{'wikipedia_id': '129524', 'title': 'Field of Dreams', 'start_paragraph_id': 19, 'start_character': 0, 'end_paragraph_id': 19, 'end_character': 40, 'bleu_score': 0.6147881529512641, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18196686284723988732}, 'section': 'Section::::Cast.\n'}]}]