About: http://webisa.webdatacommons.org/174133758

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	These systems also need to be very careful not to introduce pollutants, such as petroleum products or chemicals, because these pollutants are very difficult to clean up.
http://www.w3.org/ns/prov#wasQuotedFrom	abc.net.au