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.

Ex Input:
Spermatogenesis creates ____ sperm of equal size.

Ex Output:
four


Ex Input:
Most children recover completely in ____ to three months.

Ex Output:
two


Ex Input:
Plums generally bloom and fruit in ____ to five years.

Ex Output:

three