About: http://webisa.webdatacommons.org/100250218

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	Tablet PCs, electronic books and game players are examples of portable device that are typically operated with two hands.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com