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: Mental illness enters the lives of at least one in ____ families.

Output: four


Input: Consider Input: Mammals have ____ cervical vertebrae, a number that remains remarkably constant.

Output: seven


Input: Consider Input: Dew worms can tunnel as deep as ____ feet.


Output: five