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: Orangutans spend up to ____ hours a day eating or foraging for food.

Answer: six


Question: Aardvarks have ____ toes on the front feet and five toes on their back feet.

Answer: four


Question: Proboscis monkeys live in-groups of ____ to fifteen with an adult male as their leader.

Answer:
five