query: SELECT ?grouping (COUNT(DISTINCT ?entity) as ?count) (SAMPLE(?entity) as ?sample) WHERE { ?entity wdt:P31/wdt:P279* wd:Q98467717;wdt:P8433 []. ?entity wdt:P179 ?grouping .} GROUP BY ?grouping HAVING (?count >= 20) ORDER BY DESC(?count) LIMIT 1000