What is {twinned administrative body} of {Rosario} that is {start time} is {1993-0-0} ?
In 1993, when did the twinned administrative body of Rosario start?
When did the twinned administrative body of Rosario start in the year 1993?
SELECT ?v WHERE { ?k property:start_time ?s . ?k property:twinned_administrative_body ?v . resource:Rosario property:twinned_administrative_body ?k . FILTER ( CONTAINS ( YEAR ( ?s ) , '1993' ) ) }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q52535> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P190> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P580> <1993-0-0>
} 

SELECT ?obj WHERE { wd:Q52535 p:P190 ?s . ?s ps:P190 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1993')) }