Assertion: concussion's symptom | /r/CapableOf | persist for month
Facets:
value: sometimes
type: TEMPORAL
value: rarely, years
type: DEGREE
Source sentences:
text: When properly managed, the majority of concussion symptoms will resolve within a couple of weeks, however over-exertion of brain cells during recovery can cause symptoms to persist for months or even years.
text: However, sometimes, symptoms persist for months or, rarely, years.