About: http://webisa.webdatacommons.org/4794420

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	Suitable power-operated means (not shown) such as a winch or other device, may be used in lifting and lowering the casing.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com