About: http://webisa.webdatacommons.org/421001053

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	In addition, the pumps and other equipment required to create the vacuum and draw the slurry through the screen may be unduly complex and difficult to maintain.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com