Complex sentence: Katarina Witt (born December 3,1965) is a German figure skater, in Germany she was commonly affectionately called "Kati" in the past, but today her full name is used more often.
Split into simpler sentences: Katarina Witt (born December 3,1965) is a German figure skater. In Germany she was commonly affectionately called "Kati" in the past, but today her full name is used more often.