Task: Question Answering
Input (English): passage: Preston Xavier Burke, M.D. is a fictional character from the medical drama television series Grey's Anatomy, which airs on ABC in the United States. The character was created by series producer Shonda Rhimes, and was portrayed by actor Isaiah Washington from 2005 to 2007. Introduced as an attending cardiothoracic surgeon at the fictional Seattle Grace Hospital, Burke's romantic relationship with intern Cristina Yang formed one of the main storylines in the shows' first three seasons.
 question: does dr. burke die in grey's anatomy?
Output (English): No