About: http://webisa.webdatacommons.org/163662167

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 mathematics, the Klein bottle is an example of a non-orientable surface.
http://www.w3.org/ns/prov#wasQuotedFrom	shapeways.com