About: http://webisa.webdatacommons.org/210654632

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	For middle school students, contains full-text articles, biographies, primary source documents, and images, including maps and flags.
http://www.w3.org/ns/prov#wasQuotedFrom	npl.org