Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.

Q: Context: Charles Wilson Cross died of a heart attack June 2, 1928, in Calgary.
Question: What was Charles Wilson Cross's cause of death?

A: heart attack
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Q: Context: Billionaire Boy is a children's fiction book published on 28 October 2010 by HarperCollins and written by David Walliams and illustrated by Tony Ross.
Question: Who was Billionaire Boy illustrated by?

A: tony ross
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Q: Context: Louis Francois Rene Panhard (27 May 1841 - 16 July 1908) was a French engineer, merchant and a pioneer of the automobile industry in France.
Question: Which country was Rene Panhard in?

A:
france
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