About: http://webisa.webdatacommons.org/284480419

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Ozone is a gas that occurs naturally in the upper atmosphere to protect the earth from the sun's harmful ultraviolet rays.
http://www.w3.org/ns/prov#wasQuotedFrom	epa.gov