About: http://webisa.webdatacommons.org/40757372

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	A number of existing open textbooks have been adopted at schools including Harvard, Caltech and Rice.
http://www.w3.org/ns/prov#wasQuotedFrom	trinity.edu