Assertion: black rat | /r/CapableOf | play primary role
Facets:
value: in spreading the bacterium
type: TRANSITIVE-OBJECT
Source sentences:
text: The black rat, with the fleas that it carries, plays a primary role in spreading the bacterium Yersinia pestis responsible for bubonic plague, and carries the organisms responsible for typhus, Weil's disease, toxoplasmosis and trichinosis.