A card can be stiff.Logical formLearned from18 sentences. A whisky can be stiff.Logical formLearned from18 sentences. Boards can be stiff.Logical formLearned from18 sentences. Consequences can be stiff.Logical formLearned from18 sentences. Faces can be stiff.Logical formLearned from17 sentences. A white shirt can be stiff.Logical formLearned from17 sentences. Pieces can be stiff.Logical formLearned from17 sentences. A tip can be stiff.Logical formLearned from17 sentences. A forearm can be stiff.Logical formLearned from17 sentences. A movement can be stiff.Logical formLearned from17 sentences. A .. can be stiff.Logical formLearned from17 sentences. Air can be stiff.Logical formLearned from17 sentences. A (market competition) can be stiff.Logical formLearned from17 sentences. A cup can be stiff.Logical formLearned from17 sentences. A person may go stiff.Logical formLearned from17 sentences.