SELECT DISTINCT ?s
WHERE {
?s <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Organisation>
?s <http://dbpedia.org/property/allegiance> <http://dbpedia.org/resource/Union_(American_Civil_War)>
MINUS {?s dbo:wikiPageRedirects ?o . }}
