About: http://webisa.webdatacommons.org/140004642

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	By Tim Fink - 1:00 AM on June 27, 2012 It is just the way Acrobat and Reader react when any kind of form field is in a PDF. Yes, a button is a form field, technically.
http://www.w3.org/ns/prov#wasQuotedFrom	adobe.com