User:TweetsFactsAndQueries/Queries/number words whose number of letters equals their value

Originally posted on Twitter. After a suggestion by Auregann.

SELECT ?lexeme ?lemma ?languageLabel ?number WHERE {
  ?lexeme wikibase:lemma ?lemma;
          dct:language ?language;
          ontolex:sense/wdt:P5137 [
            wdt:P31 wd:Q21199; # exclude ordinal numbers (“fifth” is 5 letters long)
            wdt:P1181 ?number
          ].
  FILTER(STRLEN(?lemma) = ?number)
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
ORDER BY DESC(?number)

Try it!