Question: Which nation has emissions per capita in dated metric ton of 0.044541 and includes Chinese as a language?
Answer(s):
answer: Vietnam

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.01r2l)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.01r2l ns:language.human_language.countries_spoken_in ?x .
?x ns:location.statistical_region.co2_emissions_per_capita ?c .
?c ns:measurement_unit.dated_metric_ton.number "0.044541" . 
}