About: http://webisa.webdatacommons.org/364913891

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	So, when click on submit button, you need to detect whether form is valid or not on client side.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com