About: http://webisa.webdatacommons.org/403662430

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	To test that you would likely need to use a proxy such as Burp or OWASP ZAP, then browse to the affected URL, look for the parameter they mention in the description and modify it to inject HTML, something like
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com