About: http://webisa.webdatacommons.org/228299223

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	One reason for this is that a document such as a piece of paper or an open book lying face up on a supporting surface is generally not flat, because the document is not held against a transparent platen as in a flatbed scanner.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com