Assertion: narcolepsy's condition | /r/HasProperty | known to man
Facets:
Source sentences:
text: Although narcolepsy occurs in a broad scale of degrees of severity, it has some of the most telltale symptoms of any condition known to man.
text: Dr. Dement, our teacher, is among the world's foremost experts on narcolepsy and often remarks that cataplexy has to be just about the most blatantly telling symptom of any condition known to man.