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: Bees normally live for about thirty days, but infected bees survive for only ____ to five days.

Answer: three


Question: Women normally have ____ ovaries.

Answer: two


Question: Caffeine is a powerful sleep inhibitor that stays in the bloodstream for up to ____ hours.

Answer:
six