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: AND SOMETIMES Y 
Clue: A people got this name, now also used for a type of taxicab, from the mistaken belief that they came from Egypt
answer:
gypsy


question:
Category: EXPRESSIONS 
Clue: This positive expression used since the 1940s promotes a type of stove
answer:
"now you\'re cooking with gas"


question:
Category: ASIA 
Clue: Until 1939 this was Thailand's official name
answer:

siam