Complex sentence: In the 2012 Turkish Cup Final they were crowned champions against rivals Bursaspor by a decisive 4--0 win, which was their first domestic cup win in 29 years, since 1983.
Split into simpler sentences: In the 2012 Turkish Cup Final they were crowned champions against rivals Bursaspor by a decisive 4--0 win. This was their first domestic cup win in 29 years, since 1983.