query: # AusLichen taxa without taxon author citations
  SELECT ?item ?itemLabel ?taxon_name ?ausLichen  WHERE {
    SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
    ?item wdt:P9093 ?ausLichen.
    ?item wdt:P225 ?taxon_name.
    MINUS {?item wdt:P6507 ?citation.} 
  }
  ORDER BY ?taxon_name
  