Complex sentence: The 2007 competition was won by Chinese singer Shenyang who made his debut at the Metropolitan Opera, New York in 2009 and the Song Prize was won by English soprano Elzabeth Watts.
Split into simpler sentences: The 2007 competition was won by Chinese singer Shen Yang, who made his debut at the Metropolitan Opera, New York in 2009. The Song Prize was won by English soprano Elzabeth Watts.