A competition can be stiff.Logical formLearned from7 634 sentences. Resistance can be stiff.Logical formLearned from4 267 sentences. Opposition can be stiff.Logical formLearned from3 916 sentences. A neck can be stiff.Logical formLearned from1 962 sentences. Penalties can be stiff.Logical formLearned from1 733 sentences. A challenge can be stiff.Logical formLearned from1 494 sentences. A drink can be stiff.Logical formLearned from904 sentences. Fines can be stiff.Logical formLearned from873 sentences. A wind can be stiff.Logical formLearned from871 sentences. A person can be stiff.Logical formLearned from859 sentences. A breeze can be stiff.Logical formLearned from856 sentences. Peaks can be stiff.Logical formLearned from738 sentences. A male can be stiff.Logical formLearned from701 sentences. A cock can be stiff.Logical formLearned from592 sentences. A competition can be stiff.Logical formLearned from539 sentences.