About: http://webisa.webdatacommons.org/321999939

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	Because of the consequent limitations on the use of the probe in various operating conditions, different types of probes are provided, with different predetermined shapes and head orientations of the head relative to the grip.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com