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.

Input: Consider Input: Arthropods are made up of ____ groups of living animals and one group of extinct animals.

Output: four


Input: Consider Input: Adult clothing is worth about ____ percent of retail and children's clothing a little more.

Output: ten


Input: Consider Input: Mares normally give birth to their first foal when they are between ____ and six years of.


Output: three