About: http://webisa.webdatacommons.org/48981504

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	As near as I can tell, they mean that they are the most advanced because their reader is the thinnest and lightest -- the article suffers from indifferent xlation, and it does not really say much.
http://www.w3.org/ns/prov#wasQuotedFrom	mobileread.com