(Cable modem service) can be (telecommunications service).Logical formLearned from5 sentences. A person may buy a (cable modem).Logical formLearned from5 sentences. (Data compression) may save (modem transmission time).Logical formLearned from5 sentences. Modems can be in use.Logical formLearned from5 sentences. (Modem lines) can be high-speed.Logical formLearned from5 sentences. A hour can be over a modem.Logical formLearned from5 sentences. (Data modems) can be high-speed.Logical formLearned from5 sentences. A modem can be slow.Logical formLearned from5 sentences. Modems can be rugged.Logical formLearned from5 sentences. (Cable modems) can be one-way.Logical formLearned from5 sentences. Jerks may sell a person a modem.Logical formLearned from5 sentences. A (phone line) may use a modem.Logical formLearned from5 sentences. A person may change a modem.Logical formLearned from5 sentences. A modem may be connected to a (phone line).Logical formLearned from5 sentences. A modem can be for communication.Logical formLearned from5 sentences.