A (copper globe) can be hollow.Logical formLearned from3 sentences. Water can be hollow.Logical formLearned from3 sentences. Freedom can be hollow.Logical formLearned from3 sentences. Necks can be hollow.Logical formLearned from3 sentences. Arguments may ring hollow.Logical formLearned from3 sentences. (Masonry units) can be hollow.Logical formLearned from3 sentences. (Tile walls) can be hollow.Logical formLearned from3 sentences. (Cage structures) can be hollow.Logical formLearned from3 sentences. An anode can be hollow.Logical formLearned from3 sentences. Mandrels can be hollow.Logical formLearned from3 sentences. Girls can be hollow.Logical formLearned from3 sentences. Canals can be hollow.Logical formLearned from3 sentences. Battledores can be hollow.Logical formLearned from3 sentences. A technicality can be hollow.Logical formLearned from3 sentences. (Hearing rights) can be hollow.Logical formLearned from3 sentences.