Assertion: concussion | /r/CapableOf | turn into severe case
Facets:
value: unexpectedly
type: MANNER
value: after several days after the accident
type: TEMPORAL
Source sentences:
text: However, there are also some cases where the person suffers a minor concussion and shows the above mentioned symptoms immediately; but the concussion has unexpectedly turned into a more severe case after several days after the accident.