About: http://webisa.webdatacommons.org/137737723

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 head 12 is movable in three coordinate directions X,Y,Z relative to the table 10, and has scales and readheads or other transducers (not shown) for measuring the coordinate position.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk