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: Variable stars fall into ____ major physical classifications.

Output: four


Input: Consider Input: Black widows mature in two to ____ months.

Output: four


Input: Consider Input: Most affected piglets are only one to ____ days of age.


Output: three