what is the {start time} for {Iraq} has {member of} as {International Development Association} ?
When did the International Development Association accept Iraq as a member?
When did Iraq become a member of the International Development Association?
SELECT ?c WHERE { ?j property:member_of resource:International_Development_Association . ?j property:start_time ?c . resource:Iraq property:member_of ?j }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q796> .
?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/Q827525> .
?statement <http://www.wikidata.org/entity/P580> ?value. 
} 

SELECT ?value WHERE { wd:Q796 p:P463 ?s . ?s ps:P463 wd:Q827525 . ?s pq:P580 ?value}