Assertion: narcolepsy's symptom | /r/HasProperty | daytime sleepiness
Facets:
value: usually
type: DEGREE
Source sentences:
text: The earliest symptom of narcolepsy is usually daytime sleepiness, which may be extreme.
text: One symptom that’s affected the most is daytime sleepiness.
text: This sleeping disorder mainly falls into the sub-category of Central Disorders of Hypersomnolence; the main symptom is daytime sleepiness which is not caused by disturbed nocturnal sleep or misaligned circadian rhythms.