Simplify the following text for a Grade 8 native English-speaking person.
Original: Treptow-K Ã penick ( , with a silent w ) is the ninth borough of Berlin , formed in Berlin 's 2001 administrative reform by merging the former boroughs of Treptow and KÃ penick .
Simplified: Treptow-K Ã penick is a borough of Berlin , formed in 2001 by merging the former boroughs of Treptow and KÃ penick .