About: http://webisa.webdatacommons.org/327987522

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	Achieving precise positioning of the test head is complicated because the test head can weigh hundreds of pounds.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca