query: select (count(?item) as ?num)  ?val  where {
    select ?item ?val {    
      ?article schema:about ?item .
      ?article schema:inLanguage "fr" .
  	
      ?item ?prop ?val filter not exists { 
        ?val rdfs:label ?label filter (lang(?label) = "fr") .
      }    
      ?mprop wikibase:propertyType wikibase:WikibaseItem .
      ?mprop !(wikibase:novalue|wikibase:reference|wikibase:claim) ?prop . 
    } limit 3600 
  } group by ?val having (?num>2)  limit 10