About: http://webisa.webdatacommons.org/13795358

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	This series consists of twenty-three to twenty-seven books especially developed for each of the five levels, preprimer through third reader.
http://www.w3.org/ns/prov#wasQuotedFrom	nfb.org