A flooding can be chronic.Logical formLearned from59 sentences. Smokers can be chronic.Logical formLearned from59 sentences. An undernutrition can be chronic.Logical formLearned from58 sentences. A (hepatitis b infection) can be chronic.Logical formLearned from58 sentences. An infectious disease can be chronic.Logical formLearned from58 sentences. (Traffic jams) can be chronic.Logical formLearned from58 sentences. A lung can be chronic.Logical formLearned from57 sentences. A (cocaine use) can be chronic.Logical formLearned from57 sentences. A complainer can be chronic.Logical formLearned from57 sentences. (Lung problems) can be chronic.Logical formLearned from57 sentences. A fever can be chronic.Logical formLearned from57 sentences. Mental illnesses can be chronic.Logical formLearned from57 sentences. An (air pollution) can be chronic.Logical formLearned from57 sentences. (Heart problems) can be chronic.Logical formLearned from57 sentences. (Respiratory diseases) can be chronic.Logical formLearned from57 sentences.