What is {capital of} of {Canterbury} that is {start time} is {1974-4-1} ?
Canterbury capital city in 1974-4-1?
On 1974-4-1, what was the capital city of Canterbury?
SELECT ?k WHERE { resource:Canterbury property:capital_of ?p . FILTER ( CONTAINS ( YEAR ( ?a ) , '1974' ) ) . ?p property:start_time ?a . ?p property:capital_of ?k }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q29303> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1376> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P580> <1974-4-1>
} 

SELECT ?obj WHERE { wd:Q29303 p:P1376 ?s . ?s ps:P1376 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1974')) }