About: http://webisa.webdatacommons.org/312250624

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	I think issue is scoping -- your connection is a variable inside the Connect method, it probably should be a class variable or perhaps just returned from the function so the caller can manage the lifecycle.
http://www.w3.org/ns/prov#wasQuotedFrom	sitepoint.com