what is the {point in time} for {Ryōtarō Shiba} has {award received} as {Person of Cultural Merit} ?
Give me the date that Ryotaro Shiba received the award for Person of Cultural Merit.
When did Ryōtarō Shiba receive the award for Person of Cultural Merit?
SELECT ?n WHERE { ?k property:point_in_time ?n . ?k property:award_received resource:Person_of_Cultural_Merit . resource:Ryōtarō_Shiba property:award_received ?k }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q1087887> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P166> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q2545449> .
?statement <http://www.wikidata.org/entity/P585> ?value. 
} 

SELECT ?value WHERE { wd:Q1087887 p:P166 ?s . ?s ps:P166 wd:Q2545449 . ?s pq:P585 ?value}