query: # topics sorted by number of main subject (P921) statements
  #defaultView:Table
  SELECT DISTINCT ?topic ?topicLabel ?count 
  WITH {
    SELECT (count(?work) as ?count) ?topic WHERE {
      ?work wdt:P921 ?topic .
    }
    GROUP BY ?topic
  } AS %result
  WHERE {
    INCLUDE %result
    FILTER (?count > 1000 ).
    ?topic rdfs:label ?topicLabel .
    FILTER (lang(?topicLabel) = "en")
  }
  ORDER BY DESC(?count)
  