what is the {start time} for {Kiev} has {twinned administrative body} as {Kyoto} ?
In which year did Kiev and Kyoto became sister cities?
When did Kiev and Kyoto become sister cities?
SELECT ?t WHERE { resource:Kyiv property:twinned_administrative_body ?k . ?k property:twinned_administrative_body resource:Kyoto . ?k property:start_time ?t }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q1899> .
?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> <http://wikidata.dbpedia.org/resource/Q34600> .
?statement <http://www.wikidata.org/entity/P580> ?value. 
} 

SELECT ?value WHERE { wd:Q1899 p:P190 ?s . ?s ps:P190 wd:Q34600 . ?s pq:P580 ?value}