Assertion: aneurysm's wall | /r/HasProperty | become weak
Facets:
Source sentences:
text: When the walls of the aorta become weak and the diameter of the aorta increases, it is considered an aneurysm.
text: An aortic aneurysm can develop when the walls of the aorta become weak.
text: This type of aneurysm generally occurs when the walls of the aorta become weak as the result of some contributing risk factor.