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: Some prisons house up to ____ times their capacity.

Answer: seven


Question: Marsupials have ____ vaginas and a double uterus.

Answer: two


Question: Hummingbird feathers have ____ different ways of producing color.

Answer:
two