Assertion: firefly's chemical | /r/CapableOf | found in a firefly’s tail
Facets:
Source sentences:
text: The two chemicals found in a firefly’s tail, luciferase and luciferin, light up in the presence of ATP.
text: When the chemicals found in a firefly's tail are injected into diseased cells, they can detect cellular changes that can be used to study diseases like cancer.