SELECT DISTINCT ?s
WHERE {
?s <http://dbpedia.org/property/shortDescription> American politician
?s <http://dbpedia.org/ontology/birthYear> o1
FILTER (?o1 = xsd:dateTime("1923-01-01T00:00:00+09:00")
MINUS {?s dbo:wikiPageRedirects ?o . }}
