Generates a SPARQL GRAPH block.
GRAPH
Empty clauses are dropped; when none survives, the result is the empty fragment.
The serialised graph name: a variable or an IRI reference
The graph pattern clauses
The SPARQL GRAPH block, or the empty fragment for no clauses
SPARQL 1.1 Querying the Dataset
Generates a SPARQL
GRAPHblock.Empty clauses are dropped; when none survives, the result is the empty fragment.