About: http://webisa.webdatacommons.org/100996162

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	The Problem to Solve With their small size and portability, portable media devices could be used during a variety of activities, for example while reading, walking, running, biking and driving.
http://www.w3.org/ns/prov#wasQuotedFrom	patentlyapple.com