Complex sentence: She replaced Mogens Lykketoft as party chair after the 2005 parliamentary election, leading her party through the 2007 parliamentary election which was won by the opposing centre-right alliance.
Split into simpler sentences: She replaced Mogens Lykketoft as party chair after the 2005 parliamentary election. She led her party through the 2007 parliamentary election, which was won by the opposing centre-right alliance.