Assertion: chemical | /r/HasProperty | hazardous
Facets:
value: extremely
type: DEGREE
value: such as radon gas
type: OTHER
Source sentences:
text: (You may also want to note to students that some chemicals that occur naturally can also be hazardous, such as radon gas.)
text: Some chemicals that are hazardous have been developed by military organizations for use in warfare.
text: The chemicals used to produce methamphetamine are extremely hazardous.