what is the {point in time} for {Kassel} has {population} as {194268.0} ?
When was Kassel's population 194268?
When Kassel has its population 194268.0?
SELECT ?e WHERE { resource:Kassel property:population ?c . ?c property:population ?r . FILTER ( ?r = 194268.0 ) . ?c property:point_in_time ?e }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q2865> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1082> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <194268.0> .
?statement <http://www.wikidata.org/entity/P585> ?value. 
} 

SELECT ?value WHERE { wd:Q2865 p:P1082 ?s . ?s ps:P1082 ?x filter(contains(?x , '194268.0')) . ?s pq:P585 ?value}