CREATE TABLE table_57904 ("Entrant" CLOB, "Constructor" CLOB, "Chassis" CLOB, "Engine" CLOB, "Tyre" CLOB, "Driver" CLOB, "Rounds" CLOB)

What tyre was used for an entrant of Ecurie Nationale Suisse?
SELECT "Tyre" FROM table_57904 WHERE "Entrant" = 'ecurie nationale suisse'
SELECT "Tyre" FROM "table_57904" WHERE "Entrant" = 'ecurie nationale suisse'