Assertion: bile duct | /r/CapableOf | become obstructed
Facets:
value: by a severe local infection
type: CAUSE
value: by benign or malignant tumors
type: OTHER
Source sentences:
text: The bile ducts may become obstructed by gallstones , benign or malignant tumors, or a severe local infection.
text: The bile ducts may become obstructed by, benign or malignant tumors, or a severe local infection.