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

Ex Input:
Carbon dioxide extinguishes fire by physically attacking all _ points of the fire triangle.

Ex Output:
three


Ex Input:
Rats multiply _ times as fast as cats.

Ex Output:
four


Ex Input:
Elephants also have four molars, _ on the top and one on the bottom on both sides of the mouth.

Ex Output:

one