This should do the trick:

SELECT ?_tre_humain ?_tre_humainLabel WHERE {
  ?_tre_humain rdfs:label ?_tre_humainLabel .
  ?_tre_humain wdt:P31 wd:Q34770.
  FILTER (lang(?_tre_humainLabel)="aeb-arab")
}

Mbch331

Op 4-3-2018 om 14:57 schreef abdelwaheb turki:
Dear Mr. or Ms.,
I thank you for your efforts. I have written the following query to find the languages that have a label in Tunisian in Wikidata: 
SELECT ?_tre_humain ?_tre_humainLabel WHERE {
  SERVICE wikibase:label { bd:serviceParam wikibase:language "aeb-arab". }
  ?_tre_humain wdt:P31 wd:Q34770.
}
However, I found that many languages not having a label in Tunisian are sorted as well. For these languages, the featured label is the Wikidata ID of the language. I ask about how to eliminate these languages from the results of my wikidata query.
Yours Sincerely,
Houcemeddine Turki
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