About: http://webisa.webdatacommons.org/358437117

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	Battery life is a key challenge in the global market for e-readers (10 million sold in 2014).
http://www.w3.org/ns/prov#wasQuotedFrom	bookeen.com