sub:assertion {
  sub:get-chemicals-for-ontology dct:description "This query returns all chemicals defined in the given ontology." ;
    dct:license <http://www.apache.org/licenses/LICENSE-2.0> ;
    a <https://w3id.org/kpxl/grlc/grlc-query> ;
    rdfs:label "Get chemicals for ontology" ;
    <https://w3id.org/kpxl/grlc/endpoint> <https://w3id.org/np/l/nanopub-query-1.1/repo/type/20dae6a50413968fa78573086d8164eebfe36edb704e040d0cfa103b1c9a4e01> ;
    <https://w3id.org/kpxl/grlc/sparql> """prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>
prefix dct: <http://purl.org/dc/terms/>
prefix np: <http://www.nanopub.org/nschema#>
prefix npa: <http://purl.org/nanopub/admin/>
prefix npx: <http://purl.org/nanopub/x/>

select ?chemical ?chemical_label ?np where {
  graph npa:graph {
    ?np npa:hasValidSignatureForPublicKeyHash ?pubkey .
    filter not exists { ?npx npx:invalidates ?np ; npa:hasValidSignatureForPublicKeyHash ?pubkey . }
    ?np dct:created ?date .
    ?np np:hasAssertion ?a .
    ?np npx:introduces ?chemical .
    optional { ?np rdfs:label ?label }
  }
  values ?_ontology_multi_iri {}
  graph ?a {
    ?chemical rdfs:label ?chemical_label .
    ?chemical dct:isPartOf ?_ontology_multi_iri .
  }
}""" .
}