Assertion: valve's cusp | /r/HasProperty | bicuspid
Facets:
Source sentences:
text: Some people are born with an aortic valve that has two cusps (bicuspid aortic valve) instead of three.
text: Typically the aortic valve has three cusps (tricuspid aortic valve), but some people are born with an aortic valve that has two cusps (bicuspid aortic valve).