query: # fictional things named after non-fictional things
  SELECT DISTINCT ?item ?itemLabel ?itemDescription ?namedAfterLabel ?namedAfterDescription WHERE {
   ?item wdt:P31/wdt:P279* wd:Q14897293;
   wdt:P138 ?namedAfter.
   MINUS { ?namedAfter wdt:P31/wdt:P279* wd:Q14897293. }
   SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
  }