Complex sentence: In 2000 Racette made her debut at the Lyric Opera of Chicago as Cio-Cio-San and in 2005 she made her first appearance at the Los Angeles Opera as Jenůfa.
Split into simpler sentences: In 2000 Racette made her debut at the Lyric Opera of Chicago as Cio-Cio-San. In 2005 she made her first appearance at the Los Angeles Opera as Jenůfa.