About: http://webisa.webdatacommons.org/241563416

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	Books increase in difficulty, so there is a wide variety of challenge within the series.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com