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: Milk is a good source of all ____ nutrients.
Example Output: three

Example Input: Collages can have two or ____ layers.
Example Output: three

Example Input: Young flamingos leave the nest after ____ days and form groups.
Example Output:
five