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: Humans have two lungs, each fed by ____ bronchus.

Output: one


Input: Consider Input: Most insects have one or ____ pairs of wings.

Output: two


Input: Consider Input: Food allergies impact ____ to six percent of young children in America.


Output: four