About: http://webisa.webdatacommons.org/368300476

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 result is that when we examine a table such as Product, we see that certain columns only have values for certain types of Product, and never have values for other kinds of Product.
http://www.w3.org/ns/prov#wasQuotedFrom	techtarget.com