@prefix ex:<https://purl.expasy.org/sparql-examples/neXtProt/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix schema: <https://schema.org/> .
@prefix sh: <http://www.w3.org/ns/shacl#> .
ex:NXQ_09423 a sh:SPARQLExecutable, sh:SPARQLSelectExecutable ;
  sh:prefixes _:sparql_examples_prefixes ;
  rdfs:comment '''Check there are no entries whose gene is located on chromosome "unknown" which that have a end position which is NOT "0"'''@en ;
  schema:keywords "QC", "chromosomal location" ;
  schema:target <https://sparql.nextprot.org/sparql> ;
  sh:select '''PREFIX : <http://nextprot.org/rdf/>
PREFIX cv: <http://nextprot.org/rdf/terminology/>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>

select distinct ?entry where {
  ?entry :gene  ?gene .
  ?gene :chromosome "unknown"^^xsd:string .
  ?gene :end ?end .
  filter (?end = "0"^^xsd:string )
}''' .