Assertion: depression's mood | /r/CapableOf | last for two years
Facets:
Source sentences:
text: Persistent depressive disorder, sometimes called dysthymia, is a period of depressed mood that lasts for two years or longer.
text: Double depression can be defined as a fairly depressed mood (dysthymia) that lasts for at least two years and is punctuated by periods of major depression.