what is the {start time} for {Saddam Hussein} has {educated at} as {Cairo  University} ?
When did Saddam Hussein attended to Cairo University?
When was Saddam Hussein educated at Cairo University?
SELECT ?f WHERE { resource:Saddam_Hussein property:educated_at ?x . ?x property:start_time ?f . ?x property:educated_at resource:Cairo_University }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q1316> .
?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/Q194445> .
?statement <http://www.wikidata.org/entity/P580> ?value. 
} 

SELECT ?value WHERE { wd:Q1316 p:P69 ?s . ?s ps:P69 wd:Q194445 . ?s pq:P580 ?value}