About: http://webisa.webdatacommons.org/351832012

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	Teachers and lectures can prepare slides for classes, use projectors to teach from them in class and the most valuable part is that they can be posted online so students can view them afterwards.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com