About: http://webisa.webdatacommons.org/398436570

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 have StoryItem, TagItem, etc.  Lots of things that end with Item.  How come you added Item on to the end of everything vs. just Story, Tag, etc?  Seems a given that everything is an Item which makes it redundant.
http://www.w3.org/ns/prov#wasQuotedFrom	asp.net