About: http://webisa.webdatacommons.org/352223191

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	For example, on the surface of a unit sphere S^2 and any equivalent topology, the 0-th Betti number is 1, which is consistent with the fact that any harmonic function on a compact, boundless, Riemannian manifold is a constant.
http://www.w3.org/ns/prov#wasQuotedFrom	mathoverflow.net