what is the {represents} for {North Atlantic Treaty} has {signatory} as {Dean Acheson} ?
what signature represents Dean Acheson regarding the North Atlantic Treaty?
what is the {represents} for {North Atlantic Treaty} that has {signatory} as {Dean Acheson} ?
SELECT ?r WHERE { ?k property:represents ?r . resource:North_Atlantic_Treaty property:signatory ?k . ?k property:signatory resource:Dean_Acheson }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q877399> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1891> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q214758> .
?statement <http://www.wikidata.org/entity/P1268> ?value. 
} 

SELECT ?value WHERE { wd:Q877399 p:P1891 ?s . ?s ps:P1891 wd:Q214758 . ?s pq:P1268 ?value}