query: SELECT ?grouping (COUNT(DISTINCT ?entity) as ?count) (SAMPLE(?entity) as ?sample) WHERE { ?entity wdt:P31 wd:Q26817508;^schema:about/schema:isPartOf <https://fr.wikipedia.org/>. ?entity wdt:P8193 ?grouping .} GROUP BY ?grouping HAVING (?count < 0) ORDER BY DESC(?count) LIMIT 1000