A voice can be empty.Logical formLearned from18 sentences. An act can be empty.Logical formLearned from18 sentences. A lounge can be empty.Logical formLearned from18 sentences. Downtown can be empty.Logical formLearned from18 sentences. Houses may sit empty.Logical formLearned from18 sentences. A plaza can be empty.Logical formLearned from18 sentences. Possessions can be empty.Logical formLearned from18 sentences. Plays can be empty.Logical formLearned from18 sentences. A house can be empty of furniture.Logical formLearned from18 sentences. A drink can be empty.Logical formLearned from18 sentences. Syringes can be empty.Logical formLearned from18 sentences. A sort can be empty.Logical formLearned from18 sentences. (Printer cartridges) can be empty.Logical formLearned from18 sentences. A dorm can be empty.Logical formLearned from18 sentences. A packaging can be empty.Logical formLearned from18 sentences.