A male may sink into sleep.Logical formLearned from22 sentences. A (sleep apnea) can be undiagnosed.Logical formLearned from22 sentences. A woman may undergo sleep.Logical formLearned from22 sentences. A person may be exhausted from lack of sleep.Logical formLearned from22 sentences. Sleep can be in eyes.Logical formLearned from22 sentences. Persons may lose sleep.Logical formLearned from22 sentences. Persons can be with obstructive (sleep apnea).Logical formLearned from21 sentences. (Sleep problems) can be chronic.Logical formLearned from21 sentences. A person may die in sleep.Logical formLearned from21 sentences. An obstructive (sleep apnea) can be mild.Logical formLearned from21 sentences. A lot can be in sleep.Logical formLearned from21 sentences. A symptom can be constituted-of-or-filled-with (sleep apnea).Logical formLearned from21 sentences. A state can be constituted-of-or-filled-with (sleep deprivation).Logical formLearned from21 sentences. A person may want sleep.Logical formLearned from21 sentences. A person may have hours of sleep.Logical formLearned from21 sentences.