What is {twinned administrative body} of {Cincinnati} that is {start time} is {1989-1-1} ?
What did Cincinnati start the twinned administrative body in the year 1989?
When did Cincinnati start the twinned administrative body in the year 1989?
SELECT ?n WHERE { ?r property:start_time ?z . resource:Cincinnati property:twinned_administrative_body ?r . FILTER ( CONTAINS ( YEAR ( ?z ) , '1989' ) ) . ?r property:twinned_administrative_body ?n }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q43196> .
?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> <1989-1-1>
} 

SELECT ?obj WHERE { wd:Q43196 p:P190 ?s . ?s ps:P190 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1989')) }