Question: What international organization to which China belongs has its organizational headquarters in the city of Mandaluyong?
Answer(s):
answer: Asian Development Bank

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.0d05w3)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.0d05w3 ns:organization.organization_member.member_of ?y .
?y ns:organization.organization_membership.organization ?x .
FILTER(NOT EXISTS {?y ns:organization.organization_membership.to ?sk0} || 
EXISTS {?y ns:organization.organization_membership.to ?sk1 . 
FILTER(xsd:datetime(?sk1) >= "2015-08-10"^^xsd:dateTime) })
FILTER(NOT EXISTS {?y ns:organization.organization_membership.from ?sk2} || 
EXISTS {?y ns:organization.organization_membership.from ?sk3 . 
FILTER(xsd:datetime(?sk3) <= "2015-08-10"^^xsd:dateTime) })
?x ns:organization.organization.headquarters ?c .
?c ns:location.mailing_address.citytown ns:m.01_9bc . 
}