About: http://webisa.webdatacommons.org/421811053

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	In a general sense, the apparatus includes a means for constraining the track from moving except in directions parallel to the track axis.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com