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:
Female mealybugs have only ____ nymphal stages.

Ex Output:
three


Ex Input:
Hyacinths have a wingspan reaching nearly ____ feet.

Ex Output:
four


Ex Input:
Electricity is produced in ____ major ways.

Ex Output:

three