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: Tin has ____ allotropic forms.
Example Output: two

Example Input: Elderberry supplements seem to have few risks when used daily for up to ____ days.
Example Output: five

Example Input: Most indoor gyms space their protection bolts often less than ____ feet apart.
Example Output:
five