SELECT DISTINCT ?uri WHERE {?uri <http://dbpedia.org/ontology/leader> <http://dbpedia.org/resource/Pietro_Parolin> . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Country>}
Which countries were led by Pietro Parolin?
SELECT DISTINCT ?a WHERE { ?a property:leader resource:Pietro_Parolin . ?a rdf:type ontology:Country }
Holy See, Vatican City
The countries led by Pietro Parolin are [Holy See, Vatican City].
Countries led by Parolin [Holy See, Vatican].
The country whose leader is him are [Holy See, Vatican City].
The country he leads is [the Holy See, Vatican].