About: http://webisa.webdatacommons.org/181958392

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	So that 51 - 60 is an A, 41 - 50 is a B, 31 - 40 is a C, 21 - 30 is a D, 11 - 20 is an E and 0 - 10 is a U?
http://www.w3.org/ns/prov#wasQuotedFrom	usingenglish.com