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: Some countries require passports to be valid for ____ months after expiry of the visa.

Answer: six


Question: Mages can select from ____ spheres of magic - fire, water, air, earth and astral.

Answer: five


Question: Thermal equilibrium is when ____ systems reach same temperature.

Answer:
two