question: Studies published in 2007 and 2008 support what possible causes of Napoleon 's death ?
answer: peptic ulcer and gastric cancer
turker_answer: Studies published in 2007 and 2008 support a peptic ulcer and gastric cancer as possible causes of Napoleon 's death .
rule-based: Studies published in 2007 and 2008 support peptic ulcer and gastric cancer possible causes of Napoleon 's death .