About: http://webisa.webdatacommons.org/284445105

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	It may be necessary to install objects in the environment to guide the robots, such as tracks, buried signal emitting wires, markers or sensors.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca