what is the {start time} for {Varna} has {twinned administrative body} as {Aalborg Municipality} ?
What's the starting point for Varna?
When is does Varna start?
SELECT ?q WHERE { ?i property:twinned_administrative_body resource:Aalborg_Municipality . ?i property:start_time ?q . resource:Varna property:twinned_administrative_body ?i }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q6506> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P190> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q300856> .
?statement <http://www.wikidata.org/entity/P580> ?value. 
} 

SELECT ?value WHERE { wd:Q6506 p:P190 ?s . ?s ps:P190 wd:Q300856 . ?s pq:P580 ?value}