q-lang-1.rq

来自「jena2.5.4推理机系统的一种最基本实现 HP实验室出品」· RQ 代码 · 共 10 行

# 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@' )
}