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

Ex Input:
Birds bitten by infected mosquitoes are infectious from _ to eight days.

Ex Output:
four


Ex Input:
Pancreatic juice is of _ types.

Ex Output:
two


Ex Input:
Poverty is especially prevalent among rural minorities, who number _ if four of rural students.

Ex Output:

one