Given the task definition and input, reply with output. In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.

West Berlin was called " Berlin ( West ) " by the West Germany government , and usually by the East German government .

The West German Federal government officially called West Berlin " Berlin ( West ) " , although it also used the hyphenated " West-Berlin " , whereas the East German government commonly referred to it as " Westberlin " .