Question: In what country does the European Union conduct diplomatic relations?
Paraphrase: In what nation does the European Union conduct discretionary relations?
SPARQL (Wikidata):  select distinct ?obj where { wd:Q458 wdt:P530 ?obj . ?obj wdt:P31 wd:Q6256 } 
Answer: South Africa, Liechtenstein, Australia, Argentina, North Korea, Cambodia, Chad, India, Paraguay, Guatemala, Honduras, Iran, Iraq, Israel, Yemen, Jordan, Kyrgyzstan, Lebanon, Malaysia, Nepal, Pakistan, Qatar, Syria, Tajikistan, South Korea, Bangladesh, Brunei, Philippines, Togo, Tunisia, Cape Verde, Morocco, Niger, Senegal, Canada, Japan, Norway, United States of America, Denmark, Switzerland, Mexico, Kenya, United Kingdom, People's Republic of China, Brazil, Andorra, Kazakhstan, Cuba, Indonesia, Niue