Question: Where do they speak Turkish and what's the topic that speaker Alexander Mintz spoke about?
Answer(s):
answer: Austria

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.02hwyss)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.02hwyss ns:language.human_language.countries_spoken_in ?x .
?x ns:event.speech_topic.speeches_or_presentations_on_this_topic ?c .
?c ns:event.speech_or_presentation.speaker_s ns:m.08ngt5v . 
}