About: http://webisa.webdatacommons.org/430095060

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	Again on the topic of document.getElementById(), I always try to check if the value returned is a null prior to assuming that properties exist on that object.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com