Question: What language with initials HT that is spoken by Haitians?
Answer(s):
answer: Haitian Creole

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.03gyl)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.03gyl ns:location.country.languages_spoken ?x .
?x ns:language.human_language.iso_639_1_code "ht" . 
}