query: #title: Detect some mistakes # 2
  # Complex constraint from [[Property talk:P1083]]
  #
  SELECT ?item ?capacity ?nbStatements ?ratio {
    ?item wdt:P31/wdt:P279* wd:Q483110;
          wdt:P1083 ?capacity;
          wikibase:statements ?nbStatements.
    BIND (?capacity / ?nbStatements AS ?ratio)
    FILTER (?ratio < 10)
  }