About: http://webisa.webdatacommons.org/352115441

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	Found this fascinating Ben.It occurred to me you might be able to adapt this for captcha e.g. select the text and type in what is in the image.
http://www.w3.org/ns/prov#wasQuotedFrom	bennadel.com