About: http://webisa.webdatacommons.org/452018343

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	it is easy to get null pointer exceptions when you use these classes, and it is especially bad when you try to detect these connections when the app first opens and then the app crashes.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com