Table: fortune_500
Columns: rank
company
country
industry
revenue_in_usd

Question: What is the rank of the company who has a revenue of $428.2 billion?
SQL: SELECT COUNT("rank") FROM fortune_500 WHERE "revenue_in_usd" = '$428.2 billion'

Question: What is the rank of the petroleum company who has a revenue of $481.7 billion?
SQL: SELECT MIN("rank") FROM fortune_500 WHERE "industry" = 'petroleum' AND "revenue_in_usd" = '$481.7 billion'