@prefix ex: <https://sparql.rhea-db.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:135_conjugate_acid_base_pair a sh:SPARQLExecutable,
        sh:SPARQLSelectExecutable ;
  rdfs:comment """Given a ChEBI compound, find the acid it is the conjugate base of (e.g. ammonia, CHEBI:16134, is the conjugate base of ammonium), using the direct chemrof:conjugate_base_of predicate rather than the OWL-restriction pattern used elsewhere in this project for the same underlying relationship."""@en ;
  sh:select """PREFIX chemrof: <https://w3id.org/chemrof/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX CHEBI: <http://purl.obolibrary.org/obo/CHEBI_>

SELECT
  ?base
  ?baseLabel
  ?acid
  ?acidLabel
WHERE {
  BIND (CHEBI:16134 AS ?base)
  ?base chemrof:conjugate_base_of ?acid ;
    rdfs:label ?baseLabel .
  ?acid rdfs:label ?acidLabel .
}""";
  schema:keywords "ChEBI" , "Metabolite" ;
  schema:target <https://sparql.rhea-db.org/sparql> .