About: http://webisa.webdatacommons.org/287406009

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	They work on a wider variety of surfaces and can even operate on walls, ceilings or other non-horizontal surfaces.
http://www.w3.org/ns/prov#wasQuotedFrom	reference.com