Assertion: aneurysm's wall | /r/CapableOf | become balloon
Facets:
Source sentences:
text: An aneurysm develops when the wall of the artery becomes weakened and distended like a balloon.
text: Cerebral aneurysms, which affect about 5 percent of the population, occur when the wall of a blood vessel in the brain becomes weakened and bulges or balloons out.