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isaphttp://webisa.webdatacommons.org/prov/
isahttp://webisa.webdatacommons.org/
n4perl.
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
provhttp://www.w3.org/ns/prov#
xsdhhttp://www.w3.org/2001/XMLSchema#
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isa:322343341
rdf:type
prov:Entity
prov:value
Thus, since SQL without user-defined types is more concerned about the kinds of data rather than the uses of the data, we can consider this is a very poorly implemented type system (but I have not had enough experience with user-defined types in SQL to know how solid they are).Another interesting distinction was structural versus nominal typing.
prov:wasQuotedFrom
n4:org
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isa:322343341