About: http://webisa.webdatacommons.org/121890913

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	Products and sums of types can be interpreted as cartesian products and disjoint unions of sets, respectively, so that the distributivity property does hold on sets.
http://www.w3.org/ns/prov#wasQuotedFrom	psu.edu