A contrivance can be hollow.Logical formLearned from5 sentences. Tubules can be hollow.Logical formLearned from5 sentences. A country can be hollow.Logical formLearned from5 sentences. A glimpse may pertain-to the hollow world.Logical formLearned from5 sentences. A secularism can be hollow.Logical formLearned from5 sentences. A rush can be hollow.Logical formLearned from5 sentences. Moanings can be hollow.Logical formLearned from5 sentences. A (metal ball) can be hollow.Logical formLearned from5 sentences. A reconciliation can be hollow.Logical formLearned from5 sentences. A (metal cylinder) can be hollow.Logical formLearned from5 sentences. A mantra can be hollow.Logical formLearned from5 sentences. An accomplishment can be hollow.Logical formLearned from5 sentences. Arguments can be hollow.Logical formLearned from5 sentences. Expectations can be hollow.Logical formLearned from5 sentences. A face may look hollow.Logical formLearned from5 sentences.