About: http://webisa.webdatacommons.org/44490054

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 know manhattan marks each question with its difficulty level such as 700 level, 800 level, etc. becomes easier for review.
http://www.w3.org/ns/prov#wasQuotedFrom	gmatclub.com