In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

Input: Consider Input: Tarantulas have _ pairs of book lungs.

Output: two


Input: Consider Input: Most women have two or _ mastectomy bras.

Output: three


Input: Consider Input: Chipmunks mate once or twice per year and give birth to litters of one to _ offspring.


Output: eight