A male may suffer respiratory failure.Logical formLearned from7 sentences. Respiratory failure may be caused by complications.Logical formLearned from7 sentences. A respiratory depression can be fatal.Logical formLearned from7 sentences. Persons may have a respiratory illness.Logical formLearned from7 sentences. A sickness can be respiratory.Logical formLearned from7 sentences. A virus may attack a respiratory system.Logical formLearned from7 sentences. Respiratory illness may undergo a fever.Logical formLearned from7 sentences. Travellers may suffer from fever of respiratory illness.Logical formLearned from7 sentences. A case of sars can be a case of a respiratory disease.Logical formLearned from7 sentences. A businessman may be suspected of suffering from a respiratory illness.Logical formLearned from7 sentences. Cancer may pertain-to a respiratory system.Logical formLearned from7 sentences. Symptoms can be constituted-of-or-filled-with respiratory disease.Logical formLearned from6 sentences. Respiratory failure may be aged.Logical formLearned from6 sentences. A respiratory illness may be characterised by fever.Logical formLearned from6 sentences. A (water loss) can be respiratory.Logical formLearned from6 sentences.