About: http://webisa.webdatacommons.org/322392645

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	The CASE is not returning an element, as you say, such as either a column name or a column number.
http://www.w3.org/ns/prov#wasQuotedFrom	sqlteam.com