A bulge can be hollow.Logical formLearned from2 sentences. Claims of uses of a drug may ring hollow.Logical formLearned from2 sentences. A proposal can be hollow.Logical formLearned from2 sentences. A bill can be hollow.Logical formLearned from2 sentences. Cries may ring hollow.Logical formLearned from2 sentences. Hollow trees may provide homes.Logical formLearned from2 sentences. A campground can be hollow.Logical formLearned from2 sentences. Replicas can be hollow.Logical formLearned from2 sentences. (Fiber ultrafiltration membranes) can be hollow.Logical formLearned from2 sentences. A (fiber arrangement) can be hollow.Logical formLearned from2 sentences. A (fiber formation) can be hollow.Logical formLearned from2 sentences. Hollow man may be met by laughter.Logical formLearned from2 sentences. Geometric shapes can be hollow.Logical formLearned from2 sentences. A hollow body may be needed.Logical formLearned from2 sentences. Promises may sound hollow.Logical formLearned from2 sentences.