instruction:
You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.
question:
Category: DAVID MAMET 
Clue: In 1976 Mamet taught at the School of Drama at this Ivy League university whose alumni include Meryl Streep
answer:
yale


question:
Category: FOOD 
Clue: A popular health food, this soybean curd is used to make a variety of dishes & an ice cream substitute
answer:
tofu


question:
Category: A WALK ACROSS THE CHARLES BRIDGE 
Clue: Originally called Stone Bridge, the Charles Bridge was built with this "stone", like the walls of the White House
answer:

sandstone