Question: who owned the dallas cowboys before bum bright
[{'answer': 'Clint Murchison , Jr.', 'provenance': [{'wikipedia_id': '32435855', 'title': 'Bum Bright', 'start_paragraph_id': 7, 'start_character': 128, 'end_paragraph_id': 7, 'end_character': 152, 'bleu_score': 1.0, 'section': 'Section::::Dallas Cowboys owner.\n'}]}, {'provenance': [{'wikipedia_id': '32435855', 'title': 'Bum Bright', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 164, 'bleu_score': 0.9214109120166031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13783215532407105692}, 'section': 'Section::::Dallas Cowboys owner.\n'}]}]