Assertion: bilirubin | /r/HasProperty | occurring substance
Facets:
value: in the body of humans
type: LOCATION
value: naturally
type: MANNER
Source sentences:
text: Bilirubin is a naturally occurring substance in the body of humans and many other animals, but it is neurotoxic when its concentration in the blood is too high, a condition known as hyperbilirubinemia.