Complex sentence: She finished fourth at the 2006 European Athletics Championships in Gothenburg and fourth at the 2006 IAAF World Athletics Final, but tested positive in a doping test for a steroid and received a two-year doping ban.
Split into simpler sentences: She finished fourth at the 2006 European Athletics Championships in Gothenburg. She then finished fourth at the 2006 IAAF World Athletics Final, but tested positive for a steroid and received a two-year doping ban.