what is the {point in time} for {Ústí nad Labem Region} has {mean age} as {41.6} ?
On what time did Ústí nad Labem Region has set to 41.6?
What is the period of time Ústí nad Labem Region has set to 41.6?
SELECT ?f WHERE { resource:Ústí_nad_Labem_Region property:mean_age ?i . FILTER ( CONTAINS ( ?n , '41.6' ) ) . ?i property:mean_age ?n . ?i property:point_in_time ?f }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q192702> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P4442> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <41.6> .
?statement <http://www.wikidata.org/entity/P585> ?value. 
} 

SELECT ?value WHERE { wd:Q192702 p:P4442 ?s . ?s ps:P4442 ?x filter(contains(?x , '41.6')) . ?s pq:P585 ?value}