A quiet can be sustained.Logical formLearned from10 sentences. A (price increase) can be sustained.Logical formLearned from10 sentences. A flurry can be sustained.Logical formLearned from10 sentences. A chorus can be sustained.Logical formLearned from10 sentences. (Peace talks) can be sustained.Logical formLearned from10 sentences. Turnarounds can be sustained.Logical formLearned from10 sentences. An aerial assault can be sustained.Logical formLearned from10 sentences. A mobilisation can be sustained.Logical formLearned from10 sentences. A (production growth) can be sustained.Logical formLearned from10 sentences. A (dollar demand) can be sustained.Logical formLearned from10 sentences. Boos can be sustained.Logical formLearned from10 sentences. An (employment growth) can be sustained.Logical formLearned from9 sentences. Volleys can be sustained.Logical formLearned from9 sentences. A dip can be sustained.Logical formLearned from9 sentences. Sanctions can be sustained.Logical formLearned from9 sentences.