Table: corps_market_cap
Columns: rank
name
headquarters
industry
market_value_usd_million

Question: What is the lowest rank of Citigroup?
SQL: SELECT MIN("rank") FROM corps_market_cap WHERE "name" = 'citigroup'

Question: What is the market value of the automotive industry?
SQL: SELECT COUNT("market_value_usd_million") FROM corps_market_cap WHERE "industry" = 'automotive'