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

Ex Input:
Gerbils get reproductive when they reach sexual maturity at the age of _ months.

Ex Output:
three


Ex Input:
Infinity divided by _ is infinity.

Ex Output:
two


Ex Input:
Macular degeneration is a condition that affects one out of every _ seniors.

Ex Output:

three