sentences:  She failed to defend her titles in the sprint and pursuit races, with shooting errors preventing better results; she finished 17th and sixth respectively.On 12 February 2008, she won the mixed relay with Sabrina Buchholz, Andreas Birnbacher and Michael Greis to claim her first gold medal.Four days later, she won her second title in the mass start, beating Norway's Tora Berger by 3.0 seconds.