About: http://webisa.webdatacommons.org/191748146

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	Trenchers are classified as either a RockWheel or a Chain Trencher which is dependent on the size and ground material involved such as sand, clay or rock.
http://www.w3.org/ns/prov#wasQuotedFrom	excavation.com.au