About: http://webisa.webdatacommons.org/235160250

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	OK, the picture is a joke, but essentially the user is presented with a basic math problem.
http://www.w3.org/ns/prov#wasQuotedFrom	makeuseof.com