Question: What items are imported and exported from the country with national anthem Afghan National Anthem?
Answer(s):
answer: Fruit and Tree Nut Farming
answer: Carpet and Rug Mills
answer: Opium

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.national_anthem ?k .
?k ns:government.national_anthem_of_a_country.anthem ns:m.02r0hl7 . 
?c ns:location.statistical_region.major_exports ?y .
?y ns:location.imports_exports_by_industry.industry ?x .
}