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: Rhinos are herbivores with barrel shapedbodies, thick legs and feet with ____ toes.
Example Output: three

Example Input: Water consists of ____ hydrogen and one oxygen atom.
Example Output: two

Example Input: Sexual maturity is thought to be attained in about ____ years.
Example Output:
eight