Contraptions can be hollow.Logical formLearned from2 sentences. An agreement can be hollow.Logical formLearned from2 sentences. Knees can be hollow.Logical formLearned from2 sentences. (Clay spheres) can be hollow.Logical formLearned from2 sentences. (Bamboo poles) can be hollow.Logical formLearned from2 sentences. A self-righteousness can be hollow.Logical formLearned from2 sentences. A black ball can be hollow.Logical formLearned from2 sentences. A showcase can be hollow.Logical formLearned from2 sentences. A pledge may prove hollow.Logical formLearned from2 sentences. A hegemony can be hollow.Logical formLearned from2 sentences. A victory can be hollow to some republicans.Logical formLearned from2 sentences. A claim may ring hollow.Logical formLearned from2 sentences. A male may know of a hollow tree.Logical formLearned from2 sentences. An actress can be hollow.Logical formLearned from2 sentences. (Education proposals) can be hollow.Logical formLearned from2 sentences.