question: What was warren Buffett 's estimated net worth in 2008
answer: Warren Buffett ( then the world 's richest person , estimated worth of US$ 62 billion as of April 16 , 2008 )
turker_answer: Warren Buffett 's estimated net worth is US$ 62 billion as of April 16 , 2008 .
rule-based: Warren Buffett 's estimated net worth in 2008 was Warren Buffett ( then the world 's richest person , estimated worth of US$ 62 billion as of April 16 , 2008