Assertion: cow's body | /r/CapableOf | reject the valve
Facets:
Source sentences:
text: Once the tissue sac is removed from the cow, it is processed into the proper shape and, for most valves, chemically treated with glutaraldehyde – a disinfectant used to kill germs – to preserve the tissue and remove any live cells that might cause the patient’s body to reject the valve after it is implanted in the human body.