query: SELECT ?item ?itemLabel ?country ?countryLabel WHERE {
    ?item schema:description "building in Africa"@en  .
    ?item wdt:P17 ?country .
    #?country wdt:P30 wd:Q46 . 
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" }
    } LIMIT 2000