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.

Example Input: Tuataras reproduce very slowly, sometimes taking ____ years to reach sexual maturity.
Example Output: ten

Example Input: Deer show ____ symptoms of the disease.
Example Output: no

Example Input: Most carnivores can have children after one or ____ years.
Example Output:
two