About: http://webisa.webdatacommons.org/187996338

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	Complexity 4 and 5 challenges are especially difficult, generally for parties with stronger than average skills.
http://www.w3.org/ns/prov#wasQuotedFrom	enworld.org