Table for the 4 triples in graph http://liddi.stanford.edu/LIDDI_resource:0640_nanopubhead

Subject	Predicate	Object
ddir:LIDDI_resource:0640_nanopub	nanopub:hasAssertion	ddir:LIDDI_resource:0640_nanopubassertion
ddir:LIDDI_resource:0640_nanopub	nanopub:hasProvenance	ddir:LIDDI_resource:0640_nanopubprovenance
ddir:LIDDI_resource:0640_nanopub	nanopub:hasPublicationInfo	ddir:LIDDI_resource:0640_nanopubpublicationInfo
ddir:LIDDI_resource:0640_nanopub	rdf:type	nanopub:Nanopublication