Question: what is the last name of the property brothers
[{'answer': 'Scott', 'provenance': [{'wikipedia_id': '30304757', 'title': 'Property Brothers', 'start_paragraph_id': 1, 'start_character': 74, 'end_paragraph_id': 1, 'end_character': 79, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '30304757', 'title': 'Property Brothers', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 655, 'bleu_score': 0.835540842202641, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8924062927547695882}, 'section': 'Section::::Abstract.'}]}]