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: Aboriginal society is divided into ____ complementary branches.

Answer: two


Question: Carbon atoms are tetravalent, and therefore, can have ____ bonding pairs around each carbon atom.

Answer: four


Question: Dreams are the wanderings of the spirit though all ____ heavens and all nine earths.

Answer:
nine