Assertion: platelet | /r/HasProperty | critical
Facets:
value: for blood clotting
type: PURPOSE
value: in blood clotting
type: OTHER
Source sentences:
text: Platelets are small, colorless fragments, which are critical in blood clotting.
text: It is a concentration of one type of cell, known as platelets, which circulate through the blood and are critical for blood clotting.