About: http://webisa.webdatacommons.org/378093482

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	By removing one point, one of the fibers will become S^1-{one point}, which is topologically equivalent to R^1, while all the others will still remain S^1.
http://www.w3.org/ns/prov#wasQuotedFrom	fqxi.org