About: http://webisa.webdatacommons.org/427477172

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	At step 50, the disclosed system operates to scan a computer readable physical space representation, such as an electronic file or other document.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com