Simplify the following text for a Grade 8 native English-speaking person.
Original: The Germans called the building Schlachthof FÃ 1\/4 nf ( Slaughterhouse Five ) which the Allied POWs adopted as the name for their prison .
Simplified: The Germans called the building Schlachthof FÃ 1\/4 nf ( Slaughterhouse Five ) and the Allied POWs used that name for their prison .