Assertion: clot | /r/CapableOf | form in blood vessels
Facets:
value: sometimes
type: TEMPORAL
Source sentences:
text: A clot is a cluster of blood cells and fibrin strands that sometimes form in blood vessels.
text: A clot that forms in a blood vessel is called a thrombus.
text: But clots should not form when blood is moving through the body; when clots form inside blood vessels or when blood has a tendency to clot too much, serious health problems can occur.
text: Blood clots stop bleeding in open wounds, but clots can cause a heart attack or stroke when they form within a blood vessel.
text: A clot then forms inside the blood vessel; without this process, minor injuries could cause uncontrolled bleeding.