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

Example Input: Carbon dioxide accounts for _ fourths of the predicted increase in the greenhouse effect.
Example Output: three

Example Input: Dingoes live to _ or six years of age in the wild and fifteen years in captivity.
Example Output: five

Example Input: Most desktop computers have at least _ banks.
Example Output:
two