About: http://webisa.webdatacommons.org/42252810

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	Surfaces 12 a and 12 b are separated by gap G, which changes due to vibrations or other movement of at least one of the surfaces 12 a, 12 b.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com