Complex sentence: MİY couldn't attend promotion group but had finished classification in the first place and attended promotion play-offs, but couldn't promote.The team also participated in Turkish Cup in 1998--99 and eliminated at Round 2.
Split into simpler sentences: MİY couldn't attend promotion group but had finished classification in the first place and attended promotion play-offs, but couldn't promote. Team also participated in Turkish Cup in 1998--99 and eliminated at Round 2.