A person may walk between piles of hollow blocks.Logical formLearned from2 sentences. Piles can be constituted-of-or-filled-with hollow blocks.Logical formLearned from2 sentences. An (iron rod) can be hollow.Logical formLearned from2 sentences. Talk of democracy may ring hollow.Logical formLearned from2 sentences. An objection can be hollow.Logical formLearned from2 sentences. Promises of democratic reform may prove hollow.Logical formLearned from2 sentences. Pellets can be hollow.Logical formLearned from2 sentences. Soles can be hollow.Logical formLearned from2 sentences. A victory may ring hollow.Logical formLearned from2 sentences. (Cedar wood resonators) can be hollow.Logical formLearned from2 sentences. A (metal pellet) may stuff into a hollow point.Logical formLearned from2 sentences. Pleas may ring hollow.Logical formLearned from2 sentences. (Government institutions) can be hollow.Logical formLearned from2 sentences. Assertions may sound hollow.Logical formLearned from2 sentences. A bangs can be hollow.Logical formLearned from2 sentences.