Assertion: gallstone | /r/CapableOf | obstruct cystic duct
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: Gallstones are hard, pebble-like structures that obstruct the cystic duct.
text: Acute cholecystitis is inflammation of the gallbladder that develops over hours, usually because a gallstone obstructs the cystic duct.
text: Gallstones can enter and obstruct the cystic duct, preventing the flow of bile.