Table: sao_paulo_grand_prix
Columns: name
circuit
date
winning_driver
winning_constructor
report

Question: What date did Delage win?
SQL: SELECT "date" FROM sao_paulo_grand_prix WHERE "winning_constructor" = 'delage'

Question: What circuit did Luigi Villoresi win the Lausanne Grand Prix?
SQL: SELECT "circuit" FROM sao_paulo_grand_prix WHERE "winning_driver" = 'luigi villoresi' AND "name" = 'lausanne grand prix'

Question: Which Grand Prix did Nello Pagani win?
SQL: SELECT "name" FROM sao_paulo_grand_prix WHERE "winning_driver" = 'nello pagani'