what is the {start time} for {Nauru} has {member of} as {Asian Development Bank} ?
Nauru joined the Asian Development Bank in what year?
When did Nauru become a member of the Asian Development Bank?
SELECT ?w WHERE { resource:Nauru property:member_of ?d . ?d property:member_of resource:Asian_Development_Bank . ?d property:start_time ?w }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q697> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P463> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q188822> .
?statement <http://www.wikidata.org/entity/P580> ?value. 
} 

SELECT ?value WHERE { wd:Q697 p:P463 ?s . ?s ps:P463 wd:Q188822 . ?s pq:P580 ?value}