@prefix ex: <https://sparql.metanetx.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:3 a sh:SPARQLExecutable,
        sh:SPARQLSelectExecutable ;
    rdfs:comment "For the KEGG compound C01732, retrieve the MNXref identifier, name and reference"@en ;
    sh:prefixes _:sparql_examples_prefixes ;
    sh:select """PREFIX keggC: <https://identifiers.org/kegg.compound:>
PREFIX mnx: <https://rdf.metanetx.org/schema/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

# For the KEGG compound *C01732*, retrieve the MNXref
# identifier, name and reference.

SELECT ?metabolite ?reference ?name
WHERE {
    ?metabolite a mnx:CHEM .
    ?metabolite mnx:chemRefer ?reference .
    ?metabolite rdfs:comment ?name .
    ?metabolite mnx:chemXref keggC:C01732
}""" ;
    schema:target <https://rdf.metanetx.org/sparql/> .