what is the {replaced by} for {William Pitt, 1st Earl of Chatham} has {position held} as {Prime Minister of the United Kingdom} ?
Who replaced William Pitt, 1st Earl of Chatham as the Prime Minister of the United Kingdom?
SELECT ?value WHERE { wd:Q208663 p:P39 ?s . ?s ps:P39 wd:Q14211 . ?s pq:P1366 ?value}
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q208663> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P39> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q14211> .
?statement <http://www.wikidata.org/entity/P1366> ?value. 
} 

William Pitt was replaced as 1st Earl of Chatham and Prime Minister of the United Kingdom by which person?