Original: Treptow-K öpenick (pronunciation k ö: p enik (not t rep t ov -)) is the ninth borough of Berlin, formed in Berlin's 2001 administrative reform by merging the former boroughs of Treptow and Köpenick.
Simplified: Treptow-K öpenick is a borough of Berlin, formed in 2001 by merging the former boroughs of Treptow and Köpenick.