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:
Hamsters can live to be ____ to four years old.

Ex Output:
three


Ex Input:
Tobacco companies account for ____ of the five biggest billboard advertisers in the country.

Ex Output:
four


Ex Input:
Information literacy is crucial in all ____ types of learning situations.

Ex Output:

three