query: #ski resorts that are also something else.
  SELECT ?linkcount ?item ?otherClassLabel ?countryLabel 
  WHERE {
    ?item wdt:P31 wd:Q130003.
    ?item wdt:P31 ?otherClass.
    OPTIONAL { ?item wikibase:sitelinks ?linkcount. }
    OPTIONAL { ?item wdt:P17 ?country. }
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
    FILTER(?otherClass != wd:Q130003)
  }
  ORDER BY DESC(?linkcount)