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:
Ferrets normally tremble for ____ reasons.

Ex Output:
two


Ex Input:
Irrigation can increase land productivity by three to ____ times, especially in the north.

Ex Output:
seven


Ex Input:
Cockroaches can hold their breath for up to ____ minutes.

Ex Output:

seven