sub:assertion {
  sub:fulltext-search-on-labels dct:description "This query performs a full-text search on the nanopublication labels." ;
    dct:license <http://www.apache.org/licenses/LICENSE-2.0> ;
    a <https://w3id.org/kpxl/grlc/grlc-query> ;
    rdfs:label "Full-text search on labels" ;
    <https://w3id.org/kpxl/grlc/endpoint> <https://w3id.org/np/l/nanopub-query-1.1/repo/text> ;
    <https://w3id.org/kpxl/grlc/sparql> """prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>
prefix np: <http://www.nanopub.org/nschema#>
prefix npa: <http://purl.org/nanopub/admin/>
prefix npx: <http://purl.org/nanopub/x/>
prefix dct: <http://purl.org/dc/terms/>
prefix search: <http://www.openrdf.org/contrib/lucenesail#>

select ?np ?label ?date where {
  graph npa:graph {
    ?np npa:hasValidSignatureForPublicKey ?__pubkey .
    filter not exists { ?npx npx:invalidates ?np ; npa:hasValidSignatureForPublicKey ?__pubkey . }
    optional { ?np rdfs:label ?label . }
    ?np dct:created ?date .
  }
  ?np search:matches [
    search:query ?_query ;
    search:property rdfs:label ;
    search:score ?score ;
    search:snippet ?snippet ] .
}
limit 100""" .
}