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

Ex Input:
Acute sinusitis is any infectious process in the sinus lasting from one day to _ weeks.

Ex Output:
three


Ex Input:
Most polyps cause no symptoms and take five to _ years to change to cancer.

Ex Output:
seven


Ex Input:
China is reportedly in the top _ nations in industrial output.

Ex Output:

ten