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: Inhibited desire is the most common sexual dysfunction, effecting ____ in three couples.
Example Output: one

Example Input: Every human being carries six to ____ abnormal recessive genes.
Example Output: eight

Example Input: Hemorrhages usually resorb and ____ to ten days at sea level without impairment of vision.
Example Output:
seven