About: http://webisa.webdatacommons.org/408728915

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	But textbooks cannot be neatly divided into before and after the revolution, especially since books in the first years of post-revolutionary rule were inconsistent--and not always Islamic in character.
http://www.w3.org/ns/prov#wasQuotedFrom	pbs.org