@prefix ex: <https://sparql.uniprot.org/.well-known/sparql-examples/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix schema: <https://schema.org/> .
@prefix sh: <http://www.w3.org/ns/shacl#> .

ex:4 a sh:SPARQLExecutable,
        sh:SPARQLSelectExecutable ;
    rdfs:comment "Select the UniProtKB entry with the <a href=\"https://www.uniprot.org/manual/entry_name\">mnemonic</a> 'A4_HUMAN'"^^rdf:HTML ;
    sh:prefixes _:sparql_examples_prefixes ;
    sh:select """PREFIX up: <http://purl.uniprot.org/core/>

SELECT ?protein
WHERE
{
    ?protein a up:Protein .
    ?protein up:mnemonic 'A4_HUMAN'
}""" ;
    schema:keywords "identifier" ;
    schema:target <https://sparql.uniprot.org/sparql/> .