@prefix ex: <https://sparql.uniprot.org/.well-known/sparql-examples/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix schema: <https://schema.org/> .
@prefix sh: <http://www.w3.org/ns/shacl#> .

ex:19 a sh:SPARQLExecutable,
        sh:SPARQLSelectExecutable ;
    rdfs:comment "Find all natural variant annotations if associated via an evidence tag to an article with a PubMed identifier"@en ;
    sh:prefixes _:sparql_examples_prefixes ;
    sh:select """PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX up: <http://purl.uniprot.org/core/>

SELECT 
    ?accession
    ?annotation_acc 
    ?pubmed
WHERE
{
        ?protein a up:Protein ;
            up:annotation ?annotation .
        ?annotation a up:Natural_Variant_Annotation .
        ?linkToEvidence rdf:object ?annotation ;
                        up:attribution ?attribution .
        ?attribution up:source ?source .
        ?source a up:Journal_Citation .
  BIND(SUBSTR(STR(?protein),33) AS ?accession)
  BIND(IF(CONTAINS(STR(?annotation), "#SIP"), SUBSTR(STR(?annotation),33), SUBSTR(STR(?annotation),36))AS?annotation_acc)
  BIND(SUBSTR(STR(?source),35) AS ?pubmed)
}""" ;
    schema:keywords "variant annotation" , "evidence tag" , "PubMed" ;
    schema:target <https://sparql.uniprot.org/sparql/> .