Assertion: radon | /r/HasProperty | carcinogen
Facets:
Source sentences:
text: We know that radon is a carcinogen.
text: Radon is a carcinogen, which means it is known to cause cancer in humans.
text: Radon is highly radioactive and a carcinogen.
text: Radon is a carcinogen and the second-leading cause of lung cancer in the United States.
text: Radon is a carcinogen, which means it is known to cause cancer in humans.
text: How do we know radon is a carcinogen?