what is the {start time} for {Wales} has {located in the administrative territorial entity} as {Kingdom of England} ?
When is the {begin time} for {Grains} thathas {found within the authoritative regional substance} as {Kingdom of Britain} ?
when is the {start time} for {Wales} thathas {located in the administrative territorial entity} as {Kingdom of England} ?
SELECT ?z WHERE { resource:Wales property:located_in_the_administrative_territorial_entity ?x . ?x property:start_time ?z . ?x property:located_in_the_administrative_territorial_entity resource:Kingdom_of_England }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q25> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P131> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q179876> .
?statement <http://www.wikidata.org/entity/P580> ?value. 
} 

SELECT ?value WHERE { wd:Q25 p:P131 ?s . ?s ps:P131 wd:Q179876 . ?s pq:P580 ?value}