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:
Giant pandas move on all ____ legs.

Ex Output:
four


Ex Input:
Norplant implants are ____ matchstick size rods that are inserted into the upper arm.

Ex Output:
six


Ex Input:
Deadly spiders nest under toilet seats and have killed ____ people in Chicago.

Ex Output:

three