Businesses may be challenged.Logical formLearned from7 sentences. A story may be challenged.Logical formLearned from7 sentences. A person may challenge power.Logical formLearned from7 sentences. A definition may be challenged.Logical formLearned from7 sentences. A commitment may be challenged.Logical formLearned from7 sentences. Someone may challenge a mind.Logical formLearned from7 sentences. Persons may challenge ideas.Logical formLearned from7 sentences. A political-leader may challenge a ruling.Logical formLearned from7 sentences. A person may challenge a person to a debate.Logical formLearned from7 sentences. A duo may challenge a claim.Logical formLearned from7 sentences. A (belief system) may be challenged.Logical formLearned from7 sentences. A group of characters may challenge cards.Logical formLearned from7 sentences. A person may challenge a male to a match.Logical formLearned from7 sentences. Nationals may challenge monarchies.Logical formLearned from7 sentences. Perceptions may be challenged.Logical formLearned from7 sentences.