A tinkle can be hollow.Logical formLearned from2 sentences. (Imitation sentences) can be hollow.Logical formLearned from2 sentences. Appearances can be hollow.Logical formLearned from2 sentences. A phrase may sound hollow.Logical formLearned from2 sentences. A come-on can be hollow.Logical formLearned from2 sentences. A sendoff can be hollow.Logical formLearned from2 sentences. Capillaries can be hollow.Logical formLearned from2 sentences. A drama can be hollow.Logical formLearned from2 sentences. A guarantee may ring hollow.Logical formLearned from2 sentences. Platitudes may sound hollow.Logical formLearned from2 sentences. A substitute can be hollow.Logical formLearned from2 sentences. Words may feel hollow to al-adhadh.Logical formLearned from2 sentences. A (mesh cylinder) can be hollow.Logical formLearned from2 sentences. A division can be hollow.Logical formLearned from2 sentences. A ping can be hollow.Logical formLearned from2 sentences.