A sanctuary can be hollow.Logical formLearned from2 sentences. Statements may sound hollow.Logical formLearned from2 sentences. A (glass block) can be hollow.Logical formLearned from2 sentences. Bottoms can be hollow.Logical formLearned from2 sentences. Actions can be hollow.Logical formLearned from2 sentences. An idol can be hollow.Logical formLearned from2 sentences. A package can be hollow.Logical formLearned from2 sentences. A claim may sound hollow.Logical formLearned from2 sentences. A sentiment may ring hollow.Logical formLearned from2 sentences. A speech may sound hollow.Logical formLearned from2 sentences. A (wood surfboard) can be hollow.Logical formLearned from2 sentences. A view can be hollow.Logical formLearned from2 sentences. A US-president can be hollow.Logical formLearned from2 sentences. A cracker can be hollow.Logical formLearned from2 sentences. A perforation can be hollow.Logical formLearned from2 sentences.