(Prescription bottles) can be empty.Logical formLearned from16 sentences. Playgrounds can be empty.Logical formLearned from16 sentences. A pile can be empty.Logical formLearned from16 sentences. A seat may sit empty.Logical formLearned from16 sentences. (Milk jugs) can be empty.Logical formLearned from16 sentences. (Sound bites) can be empty.Logical formLearned from16 sentences. A shrine can be empty.Logical formLearned from16 sentences. A (passenger bus) can be empty.Logical formLearned from16 sentences. Camps can be empty.Logical formLearned from16 sentences. Caves can be empty.Logical formLearned from16 sentences. A (cargo ship) can be empty.Logical formLearned from16 sentences. A residence can be empty.Logical formLearned from16 sentences. A ballot can be empty.Logical formLearned from16 sentences. A (food bowl) can be empty.Logical formLearned from16 sentences. (Plastic soda bottles) can be empty.Logical formLearned from16 sentences.