what is the {start time} for {Tel Aviv} has {twinned administrative body} as {Łódź} ?
Give me the date when Tel Aviv became partner city of Łódź.
When did Tel Aviv become the twin city of Łódź ?
SELECT ?h WHERE { resource:Tel_Aviv property:twinned_administrative_body ?o . ?o property:twinned_administrative_body resource:Łódź . ?o property:start_time ?h }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q33935> .
?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/Q580> .
?statement <http://www.wikidata.org/entity/P580> ?value. 
} 

SELECT ?value WHERE { wd:Q33935 p:P190 ?s . ?s ps:P190 wd:Q580 . ?s pq:P580 ?value}