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

Input: Consider Input: Y are _ morphisms and g is quasi-compact and surjective.

Output: two


Input: Consider Input: Sabbats There are usually _ major holy days, or holidays, in the Pagan calendar.

Output: eight


Input: Consider Input: Quarks are the only fundamental particles that interact through all _ of the fundamental forces.


Output: four