About: http://webisa.webdatacommons.org/201521631

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	A somewhat safer solution is to use a function such as http://phpjs.org/functions/htmlspecialchars:426 to escape the potentially unsafe characters like < and & .
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com