sparqlPrefix top-level property
6s 	sparqlPrefix 	::= 	"PREFIX" PNAME_NS IRIREF
Implementation
final sparqlPrefix = stringIgnoreCase('PREFIX') & PNAME_NS.trim() & IRIREF;6s 	sparqlPrefix 	::= 	"PREFIX" PNAME_NS IRIREF
final sparqlPrefix = stringIgnoreCase('PREFIX') & PNAME_NS.trim() & IRIREF;