An (index medium) can be refractive.Logical formLearned from13 sentences. Audio can be a medium.Logical formLearned from13 sentences. Film can be as a medium.Logical formLearned from13 sentences. Work can be in a medium.Logical formLearned from13 sentences. A medium can be for a message.Logical formLearned from13 sentences. A medium can be digital.Logical formLearned from13 sentences. A medium may pertain-to a time.Logical formLearned from13 sentences. Some medium can be constituted-of-or-filled-with expression.Logical formLearned from13 sentences. A medium can be theatrical.Logical formLearned from13 sentences. A blog can be a medium.Logical formLearned from13 sentences. A medium can be friendly.Logical formLearned from13 sentences. Food can be a medium.Logical formLearned from13 sentences. A (transmission medium) can be for (telephone calls).Logical formLearned from13 sentences. A medium can be high-tech.Logical formLearned from13 sentences. An (advertising medium) can be online.Logical formLearned from13 sentences.