About: http://webisa.webdatacommons.org/13653303

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	While browsing around about problems similar to the problem of Apollonius, I have found references to constructions of all types of circles.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com