About: http://webisa.webdatacommons.org/407248376

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	This gets rid of the exception but also does not work and seems wrong to me, especially given the solution that works when using UniformGrid in the related post where the Columns are declared in the outer ItemsControl.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com