query: SELECT ?item (COUNT(?sitelink) AS $slcnt) WHERE {
    ?item wdt:P5008 wd:Q66098665 .
    ?item wdt:P585 ?time 
    FILTER (?time <= "2020-03-01T00:00:00Z"^^xsd:dateTime) .
    FILTER EXISTS { ?item wdt:P17 ?dummy0 }
    FILTER EXISTS { ?item wdt:P585 ?dummy0 }
    FILTER NOT EXISTS { ?item wdt:P31 wd:Q18608583 }
    FILTER NOT EXISTS { ?item wdt:P31 wd:Q57733494 }
    FILTER NOT EXISTS { ?item wdt:P2094 wd:Q57750246 }
    FILTER NOT EXISTS { ?item wdt:P115 ?dummy0 }
    OPTIONAL { ?sitelink schema:about ?item . }
  } 
  GROUP BY(?item) ORDER BY DESC(?slcnt) LIMIT 11000