Given a sentence, fill out the missing word with a 'no' or a number (between zero and ten). You should write the numbers with english alphabet, like: four instead of 4.
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Question: Elephants have five toes on the fore feet and ____ on the hind feet.

Answer: four


Question: Power is derived from ____ sources, money and people.

Answer: two


Question: Eternity is a game for ____ to four players, human or computer.

Answer:
one