A piano can be sustained.Logical formLearned from4 sentences. A hypocrisy can be sustained.Logical formLearned from4 sentences. An absorption can be sustained.Logical formLearned from4 sentences. An enterprise can be sustained.Logical formLearned from4 sentences. Responders can be sustained.Logical formLearned from4 sentences. A mistreatment can be sustained.Logical formLearned from4 sentences. A migration can be sustained.Logical formLearned from4 sentences. An (inflation rate) can be sustained.Logical formLearned from4 sentences. Absences can be sustained.Logical formLearned from4 sentences. An enjoyment can be sustained.Logical formLearned from4 sentences. A scrutiny can be sustained.Logical formLearned from4 sentences. A current-account surplus can be sustained.Logical formLearned from4 sentences. A (market growth) can be sustained.Logical formLearned from4 sentences. (Spending increases) can be sustained.Logical formLearned from4 sentences. A (peace effort) can be sustained.Logical formLearned from4 sentences.