A hand can be hollow.Logical formLearned from8 sentences. Elves may live in a hollow tree.Logical formLearned from8 sentences. Rings can be hollow.Logical formLearned from8 sentences. An (amnesty offer) can be hollow.Logical formLearned from8 sentences. A band can be hollow.Logical formLearned from8 sentences. A (fiber technology) can be hollow.Logical formLearned from8 sentences. Capsules can be hollow.Logical formLearned from8 sentences. Halls can be hollow.Logical formLearned from8 sentences. Cones can be hollow.Logical formLearned from8 sentences. Circles can be hollow.Logical formLearned from8 sentences. Attempts can be hollow.Logical formLearned from8 sentences. Sites can be hollow.Logical formLearned from8 sentences. A wooden horse can be hollow.Logical formLearned from8 sentences. A notion can be hollow.Logical formLearned from8 sentences. Bases can be hollow.Logical formLearned from8 sentences.