Question: This far-right, anti-government American organization who supported the defendant in a trial over the violation of 18 U.S.C. § 922(o), claims a a membership of how many people?
{'answer': '35,000', 'supporting_facts': [['United States v. Olofson', 0], ['United States v. Olofson', 3], ['Oath Keepers', 0], ['Oath Keepers', 3]]}