what is the {point in time} for {Zibo} has {twinned administrative body} as {Gwangju} ?
When did zibo has twinned administrative body as Gwangju ?
Which point in time for zibo has twinned administrative body as Gwangju ?
SELECT ?h WHERE { resource:Zibo property:twinned_administrative_body ?b . ?b property:twinned_administrative_body resource:Gwangju,_Gyeonggi . ?b property:point_in_time ?h }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q198370> .
?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/Q42069> .
?statement <http://www.wikidata.org/entity/P585> ?value. 
} 

SELECT ?value WHERE { wd:Q198370 p:P190 ?s . ?s ps:P190 wd:Q42069 . ?s pq:P585 ?value}