(Bullet cases) can be empty.Logical formLearned from10 sentences. A person may return empty.Logical formLearned from9 sentences. A mosque can be empty.Logical formLearned from9 sentences. Some homes may stand empty.Logical formLearned from9 sentences. A planet can be empty.Logical formLearned from9 sentences. A number can be empty.Logical formLearned from9 sentences. A cab can be empty.Logical formLearned from9 sentences. A (stock train) can be empty.Logical formLearned from9 sentences. An (oil tank) can be empty.Logical formLearned from9 sentences. Treasuries can be empty.Logical formLearned from9 sentences. An empty bottle can be in a US-city.Logical formLearned from9 sentences. A burrow can be empty.Logical formLearned from9 sentences. A coat can be empty.Logical formLearned from9 sentences. Runs can be empty.Logical formLearned from9 sentences. A penthouse can be empty.Logical formLearned from9 sentences.