A stiff arm can be famous.Logical formLearned from2 sentences. A dough can be stiff.Logical formLearned from2 sentences. A (center stem) can be stiff.Logical formLearned from2 sentences. Politicians can be stiff.Logical formLearned from2 sentences. A (cotton shirt) can be stiff.Logical formLearned from2 sentences. (Carbon taxes) can be stiff.Logical formLearned from2 sentences. A lock can be stiff.Logical formLearned from2 sentences. Claws can be stiff.Logical formLearned from2 sentences. A marionette can be stiff.Logical formLearned from2 sentences. A composite can be stiff.Logical formLearned from2 sentences. Brakes can be stiff.Logical formLearned from2 sentences. An icing can be stiff.Logical formLearned from2 sentences. A switch can be stiff.Logical formLearned from2 sentences. Runners can be stiff.Logical formLearned from2 sentences. An (artist roster) can be stiff.Logical formLearned from2 sentences.