Issues may require sustained action.Logical formLearned from4 sentences. A football can be sustained.Logical formLearned from4 sentences. A fightback can be sustained.Logical formLearned from4 sentences. (Mass sectarian killings) can be sustained.Logical formLearned from4 sentences. Successes can be sustained.Logical formLearned from4 sentences. (Prevention programs) can be sustained.Logical formLearned from4 sentences. (Liquidity concerns) can be sustained.Logical formLearned from4 sentences. A winning streak can be sustained.Logical formLearned from4 sentences. A (world demand) can be sustained.Logical formLearned from4 sentences. A (losing run) can be sustained.Logical formLearned from4 sentences. A (budget shortfall) can be sustained.Logical formLearned from4 sentences. A breach can be sustained.Logical formLearned from4 sentences. A grip can be sustained.Logical formLearned from4 sentences. Bursts of shooting can be sustained.Logical formLearned from4 sentences. A (market improvement) can be sustained.Logical formLearned from4 sentences.