About: http://webisa.webdatacommons.org/188866695

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	For example, such impurities as water, oxygen, carbon monoxide, carbon dioxide, and the like.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es