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

Ex Output:
one


Ex Input:
Most insects have one or ____ pairs of wings.

Ex Output:
two


Ex Input:
Blood donors can give blood every eight weeks, or ____ times a year.

Ex Output:

six