Question: the goldfarb v. virginia state bar decision on anti-trust laws was decided at what level
[{'answer': 'a U.S. Supreme Court decision', 'provenance': [{'wikipedia_id': '22494995', 'title': 'Goldfarb v. Virginia State Bar', 'start_paragraph_id': 1, 'start_character': 57, 'end_paragraph_id': 1, 'end_character': 86, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '22494995', 'title': 'Goldfarb v. Virginia State Bar', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 209, 'bleu_score': 0.943604326170661, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5456842854991236240}, 'section': 'Section::::Abstract.'}]}]