About: http://webisa.webdatacommons.org/369150869

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	We???ll make them a matrix where each row is an item and each column a level.
http://www.w3.org/ns/prov#wasQuotedFrom	r-bloggers.com