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

Ex Input:
Rainforests cover less than _ percent of the Earth's surface.

Ex Output:
two

Ex Input:
Conflict is inevitable whenever _ or more people work together.

Ex Output:
two

Ex Input:
Cows normally expel the placenta within two to _ hours.

Ex Output:
eight