http://rdfa.info/test-suite/test-cases/rdfa1.1/xml/manifest#0318

@base <http://rdfa.info/test-suite/test-cases/rdfa1.1/xml/manifest> .
@prefix mf: <http://www.w3.org/2001/sw/DataAccess/tests/test-manifest#> .
@prefix rdfatest: <http://rdfa.info/vocabs/rdfa-test#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix test: <http://www.w3.org/2006/03/test-description#> .

<#0318>
	a rdfatest:PositiveEvaluationTest ;
	rdfs:comment "If the value (of @vocab) is empty, then the local default vocabulary must be reset to the Host Language defined default." ;
	mf:action <0318.xml> ;
	mf:name "Test 0318: Setting @vocab to empty strings removes default vocabulary" ;
	mf:result <0318.ttl> ;
	test:classification test:required ;
	test:specificationReference "RDFa Core 1.1, section 7.5 step 2" .