Question: who played john ross ewing in the original dallas
[{'answer': 'Omri Katz', 'provenance': [{'wikipedia_id': '30766856', 'title': 'John Ross Ewing III', 'start_paragraph_id': 1, 'start_character': 258, 'end_paragraph_id': 1, 'end_character': 267, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '30766856', 'title': 'John Ross Ewing III', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 585, 'bleu_score': 0.8835308119273481, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1224580066806406312}, 'section': 'Section::::Abstract.'}]}]