A fur can be stiff.Logical formLearned from4 sentences. Projections can be stiff.Logical formLearned from4 sentences. The atmosphere can be stiff.Logical formLearned from4 sentences. An officer can be stiff.Logical formLearned from4 sentences. Someone can be stiff.Logical formLearned from4 sentences. A (re-election campaign) can be stiff.Logical formLearned from4 sentences. (Insurance fees) can be stiff.Logical formLearned from4 sentences. A man can be stiff with rheumatism.Logical formLearned from4 sentences. An art can be stiff.Logical formLearned from4 sentences. An upper lip may remain stiff.Logical formLearned from4 sentences. Speeches can be stiff.Logical formLearned from4 sentences. Trouble can be stiff.Logical formLearned from4 sentences. A wall can be stiff.Logical formLearned from4 sentences. A policy can be stiff.Logical formLearned from4 sentences. A possession can be stiff.Logical formLearned from4 sentences.