A volley can be sustained.Logical formLearned from2 sentences. A (wind report) can be sustained.Logical formLearned from2 sentences. An international trade can be sustained.Logical formLearned from2 sentences. A sensation can be sustained.Logical formLearned from2 sentences. A (fishing pressure) can be sustained.Logical formLearned from2 sentences. Ones can be sustained.Logical formLearned from2 sentences. A sustained chord may be followed by a silence.Logical formLearned from2 sentences. An influence can be sustained.Logical formLearned from2 sentences. A (breeding population) can be sustained.Logical formLearned from2 sentences. A maneuvering can be sustained.Logical formLearned from2 sentences. A spin can be sustained.Logical formLearned from2 sentences. Coughings can be sustained.Logical formLearned from2 sentences. A lightness can be sustained.Logical formLearned from2 sentences. An excavation can be sustained.Logical formLearned from2 sentences. A rapid fire can be sustained.Logical formLearned from2 sentences.