Question: Which politicians were married to a German?
SPARQL:
SELECT DISTINCT ?uri WHERE {  ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Politician> .  ?uri <http://dbpedia.org/ontology/spouse> ?spouse . { ?spouse <http://dbpedia.org/ontology/birthPlace> <http://dbpedia.org/resource/Germany> . } UNION { ?spouse <http://dbpedia.org/ontology/birthPlace> ?p .  ?p <http://dbpedia.org/ontology/country> <http://dbpedia.org/resource/Germany> . } }