21 possible answers to
Answers with 3 characters: ULM Answers with 4 characters: BONN KIEL KOLN COLN GERA Answers with 5 characters: EMDEN ESSEN HALLE STADT TRIER WAREN Answers with 6 characters: AACHEN BREMEN DESSAU KASSEL TREVES Answers with 7 characters: COLOGNE KOBLENZ MUNSTER Answers with 9 characters: HAMBURG-7