Communication can be between threads.Logical formLearned from21 sentences. Students may undergo (communication skills).Logical formLearned from21 sentences. A communication can be established.Logical formLearned from21 sentences. A communication can be to a public.Logical formLearned from21 sentences. A communication can be focused.Logical formLearned from21 sentences. Communications may be maintained.Logical formLearned from21 sentences. A set can be constituted-of-or-filled-with communications.Logical formLearned from21 sentences. Communication can be among parents.Logical formLearned from21 sentences. A communication may be sent.Logical formLearned from21 sentences. Communications may pertain-to citizens.Logical formLearned from21 sentences. An internal communication can be effective.Logical formLearned from21 sentences. Communication can be over distances.Logical formLearned from21 sentences. Communication may be blocked.Logical formLearned from21 sentences. A basis can be constituted-of-or-filled-with communication.Logical formLearned from21 sentences. Communication can be a necessity.Logical formLearned from21 sentences.