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:
Cognitive therapy is a time-limited treatment lasting ____ to four months.

Ex Output:
three


Ex Input:
Romantic love involves ____ people.

Ex Output:
two


Ex Input:
Some stars are ____ times larger than the sun and are called massive stars.

Ex Output:

three