Question: Which nations does the countries that speaks the Nama language border?
Answer(s):
answer: Botswana
answer: Lesotho
answer: Mozambique
answer: Namibia
answer: Swaziland
answer: Zimbabwe

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ?c)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
?c ns:location.country.languages_spoken ns:m.02hwn8h . 
?c ns:location.location.adjoin_s ?y .
?y ns:location.adjoining_relationship.adjoins ?x .
}