About: http://webisa.webdatacommons.org/9619763

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	I may slowly go back and try to find the things I missed, not sure if I will bother to get 100% though cause you are right, some of the challenges and GPS caches are a pain to find.
http://www.w3.org/ns/prov#wasQuotedFrom	gmatclub.com