About: http://webisa.webdatacommons.org/150283048

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	Natural refrigerants are climate and ozone friendly gases that exist naturally in the biosphere, i.e. ammonia, carbon dioxide, and hydrocarbons. 2010 Winter 2010-11
http://www.w3.org/ns/prov#wasQuotedFrom	harvard.edu