Table: carrefour_outlets
Columns: country
first_store
hypermarkets
supermarkets
hard_discounters

Question: What country has 50 supermarkets?
SQL: SELECT "country" FROM carrefour_outlets WHERE "supermarkets" = '50'

Question: What country has 370 supermarkets?
SQL: SELECT "country" FROM carrefour_outlets WHERE "supermarkets" = '370'

Question: What country has a fire store of 1991 and a hard discounter of 397?
SQL: SELECT "country" FROM carrefour_outlets WHERE "first_store" = '1991' AND "hard_discounters" = '397'