Table: french_grand_prix_1950
Columns: driver
entrant
constructor
chassis
engine
tyre

Question: What tyre is on the talbot-lago and an Entrant of automobiles talbot-darracq sa, and a Chassis of talbot-lago t26c-da?
SQL: SELECT "tyre" FROM french_grand_prix_1950 WHERE "constructor" = 'talbot-lago' AND "entrant" = 'automobiles talbot-darracq sa' AND "chassis" = 'talbot-lago t26c-da'

Question: What is the Entrant with a Engine of talbot l6, and Eugène Chaboud was the driver?
SQL: SELECT "entrant" FROM french_grand_prix_1950 WHERE "engine" = 'talbot l6' AND "driver" = 'eugène chaboud'

Question: What entrant has a P tyre and was constructed by Alfa Romeo?
SQL: SELECT "entrant" FROM french_grand_prix_1950 WHERE "tyre" = 'p' AND "constructor" = 'alfa romeo'