About: http://webisa.webdatacommons.org/253600534

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	As a result, using some sort of CAPTCHA was inevitable although I think CAPTCHAs are not user friendly.
http://www.w3.org/ns/prov#wasQuotedFrom	codeproject.com