A study may challenge ideas.Logical formLearned from7 sentences. Monks may challenge an (anti-miscegenation law).Logical formLearned from7 sentences. Delegates may be challenged.Logical formLearned from7 sentences. A silence may be challenged.Logical formLearned from7 sentences. A female may challenge assumptions.Logical formLearned from7 sentences. A male may challenge leaders.Logical formLearned from7 sentences. Environmental groups may challenge an agency.Logical formLearned from7 sentences. A US-president may challenge credentials.Logical formLearned from7 sentences. Soldiers may be challenged.Logical formLearned from7 sentences. A judge may challenge an assertion.Logical formLearned from7 sentences. An influence may be challenged.Logical formLearned from7 sentences. A lawsuit may challenge a requirement.Logical formLearned from7 sentences. An official may challenge an interpretation.Logical formLearned from7 sentences. A male may challenge a constitutionality of a law.Logical formLearned from7 sentences. Persons may challenge authority.Logical formLearned from7 sentences.