what is the {end time} for {David Duchovny} has {educated at} as {Princeton University} ?
when {Bank of China} has {owned by} as {National Council for Social Security Fund} ?
SELECT ?value WHERE { wd:Q484365 p:P69 ?s . ?s ps:P69 wd:Q21578 . ?s pq:P582 ?value}
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q484365> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P69> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q21578> .
?statement <http://www.wikidata.org/entity/P582> ?value. 
} 

At what time was Bank of China was owned by National Council for Social Security Fund?