Question: Which west African countries have a country calling code lower than 229?
Answer(s):
answer: Mauritania
answer: Guinea
answer: Gambia
answer: Togo
answer: Senegal
answer: Ivory Coast
answer: Mali
answer: Burkina Faso

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.0hqjh)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.0hqjh ns:location.location.contains ?x .
?x ns:common.topic.notable_types ns:m.01mp .
?x ns:location.country.calling_code ?num .
FILTER (xsd:integer(?num) < 229) . 
}