About: http://webisa.webdatacommons.org/114987831

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	you are checking whether names is an array or not, but it says it is undefined.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com