About: http://webisa.webdatacommons.org/190025273

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	Leaving no mark behind, they are also suitable to use on sensitive surfaces, such as glass.
http://www.w3.org/ns/prov#wasQuotedFrom	robotics.org