"PREFIX rdf: PREFIX openbiodiv: PREFIX rdfs: PREFIX pkm: PREFIX po: PREFIX fabio: PREFIX dwc: SELECT (SAMPLE(?name) AS ?n) (COUNT(DISTINCT ?a) AS ?narticles)WHERE {       ?s a openbiodiv:ScientificName ;               rdfs:label ?name ;               dwc:specificEpithet ?sp ;               dwc:genus ?g .               ?tnu pkm:mentions ?s .         ?a po:contains ?tnu ;      a fabio:JournalArticle .}GROUP BY ?sORDER BY DESC(?narticles)"