jena-arq/testing/DAWG-Final/expr-builtin/q-lang-1.rq

# Test which things have a lang tag of some form.

PREFIX : <http://example/> 
PREFIX  xsd:    <http://www.w3.org/2001/XMLSchema#>

SELECT ?x
{ ?x :p ?v . 
  FILTER ( lang(?v) != '@NotALangTag@' )
}