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: Rabbits have ____ incisors in the upper jaw where rodents have only two.

Answer: four


Question: Macular degeneration comes in ____ forms, dry and wet.

Answer: two


Question: Pandas sleep ____ to four hours a day.

Answer:
two