About: http://webisa.webdatacommons.org/236837780

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	Each point, except one, is an intersection of three lines. (There is one solution.)D. [Challenging] There are five lines, and each line has either two or three points of intersection.
http://www.w3.org/ns/prov#wasQuotedFrom	discovermagazine.com