what is the {start time} for {Mikhail Baryshnikov} has {country of citizenship} as {Canada} ?
About the citizenship of Mikhail Baryshnikov, did he become a citizen of Canada?
When did Mikhail Baryshnikov become a citizen of Canada?
SELECT ?f WHERE { resource:Mikhail_Baryshnikov property:country_of_citizenship ?p . ?p property:start_time ?f . ?p property:country_of_citizenship resource:Canada }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q295420> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P27> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q16> .
?statement <http://www.wikidata.org/entity/P580> ?value. 
} 

SELECT ?value WHERE { wd:Q295420 p:P27 ?s . ?s ps:P27 wd:Q16 . ?s pq:P580 ?value}