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

Ex Input:
Humans seem to be able to sense at least _ forms of energy.

Ex Output:
eight


Ex Input:
Sin has _ effects on every person's life.

Ex Output:
two


Ex Input:
Most babies are ready for solid food between four and _ months of age unless premature.

Ex Output:

six