what is the {start time} for {Cusco} has {twinned administrative body} as {Chartres} ?
When did Cusco and Chartes become twin cities?
What year did the city Cusco and the city Chartes become twinned?
SELECT ?i WHERE { resource:Cuzco property:twinned_administrative_body ?l . ?l property:start_time ?i . ?l property:twinned_administrative_body resource:Chartres }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q5582862> .
?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/Q130272> .
?statement <http://www.wikidata.org/entity/P580> ?value. 
} 

SELECT ?value WHERE { wd:Q5582862 p:P190 ?s . ?s ps:P190 wd:Q130272 . ?s pq:P580 ?value}