About: http://webisa.webdatacommons.org/231106146

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	Removing more points, or for example a curve, from $\mathbb R^2$, will give you examples with all kinds of behaviour.
http://www.w3.org/ns/prov#wasQuotedFrom	mathoverflow.net