what is the {end time} for {University of London} has {manager/director} as {Edward Henry Busk} ?
On what date did Edward Henry Bush quit as manager/director of the University of London?
When did Edward Henry Bush step down as manager/director of the University of London?
SELECT ?d WHERE { ?r property:end_time ?d . ?r property:director_/_manager resource:Edward_Henry_Busk . resource:University_of_London property:director_/_manager ?r }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q170027> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1037> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q5343409> .
?statement <http://www.wikidata.org/entity/P582> ?value. 
} 

SELECT ?value WHERE { wd:Q170027 p:P1037 ?s . ?s ps:P1037 wd:Q5343409 . ?s pq:P582 ?value}