About: http://webisa.webdatacommons.org/261434751

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	So, in other words, a 3-sphere is a 3-ball whose boundary is glued into a single point.
http://www.w3.org/ns/prov#wasQuotedFrom	science4all.org