@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_DEREF_004 a sh:SPARQLExecutable, sh:SPARQLSelectExecutable ;
  sh:prefixes _:sparql_examples_prefixes ;
  rdfs:comment '''Query for an Isoform Instance e.g isoform:NX_Q8WZ42-1'''@en ;
  schema:keywords "deref_instance_Isoform" ;
  schema:target <https://sparql.nextprot.org/sparql> ;
  sh:select '''PREFIX : <http://nextprot.org/rdf/>
PREFIX cv: <http://nextprot.org/rdf/terminology/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

CONSTRUCT {
     ?INSTANCE :functionInfo ?object .
     ?object rdfs:comment ?comment.
     ?INSTANCE :swissprotDisplayed ?swissprotDisplayed.
} WHERE {
     ?INSTANCE :functionInfo ?object .
     ?object rdfs:comment ?comment.
     optional {
          ?INSTANCE :swissprotDisplayed ?swissprotDisplayed.
     }
     FILTER(!isBlank(?object))
}''' .