Optional ReadonlydefaultThe graphs merged into the default graph; if omitted while named lists graphs, the default graph is empty.
Optional ReadonlynamedThe graphs available as named graphs; if omitted while default lists graphs, there are no named graphs.
A SPARQL RDF dataset.
Names the graphs an operation runs against, overriding the dataset declared by the request text. A dataset that lists no graphs in either property leaves the request's own dataset in effect.
See