query: SELECT DISTINCT ?l ?word ?len WHERE {
   {
     ?l a ontolex:LexicalEntry ; dct:language wd:Q1860 ; wikibase:lemma ?word
     BIND(strlen(?word) as ?len)  
    } UNION {
     ?l a ontolex:LexicalEntry ; dct:language wd:Q1860 ; ontolex:lexicalForm/ontolex:representation ?word
     BIND(strlen(?word) as ?len)  
    }
  } 
  order by DESC(?len) 
  LIMIT 20