Input question: What have types called continental, mountain and piedmont?

Output answer: glaciers

Input question: If a dish is cooked a la soubise, the sauce primarily contains which vegetable?

Output answer: onion

Input question: What was the first spin-off from The Beverly Hillbillies called?

Output answer: petticoat junction

Input question: Half the world's pistachio nuts are grown in which country?

Output answer:
iran