About: http://webisa.webdatacommons.org/391674558

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	During a scan of a bar code or other optically encoded information, the first and second sensing spots S1 and S2 are scanned over the optically encoded information.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es