What is {educated at} of {Dietrich Bonhoeffer} that is {start time} is {1923-0-0} ?
In 1923, where did Dietrich Bonhoeffer go to school?
Where did Dietrich Bonhoeffer get educated starting in 1923?
SELECT ?o WHERE { FILTER ( CONTAINS ( YEAR ( ?i ) , '1923' ) ) . ?o property:educated_at ?o . resource:Dietrich_Bonhoeffer property:educated_at ?o . ?o property:start_time ?i }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q76326> .
?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> ?obj .
?statement <http://www.wikidata.org/entity/P580> <1923-0-0>
} 

SELECT ?obj WHERE { wd:Q76326 p:P69 ?s . ?s ps:P69 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1923')) }