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: Sexual maturity is reached within ____ to four years.

Answer: two


Question: Hoatzin has typical foot with ____ toes forwards and one backwards.

Answer: three


Question: Sharks use ____ primary methods to find their prey.

Answer:
three