CREATE TABLE table_52991 ("Constructor" TEXT, "Chassis" TEXT, "Engine" TEXT, "Tyres" TEXT, "Driver" TEXT, "Rounds" TEXT)

What is the tyres for Didier pironi?
SELECT "Tyres" FROM table_52991 WHERE "Driver" = 'didier pironi'
SELECT "Tyres" FROM "table_52991" WHERE "Driver" = 'didier pironi'