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: Acoustic instruments consist of ____ main parts neck, top, back and sides.

Answer: four


Question: Wind is renewable, and produces ____ emissions or by-products.

Answer: no


Question: Some manatees have three or ____ nails on the tip of each flipper.

Answer:
four