About: http://webisa.webdatacommons.org/405268250

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	The shield is preferably made of a transparent material such as a plastic so that the operator may view the interior of the hopper.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com