Given a sentence, fill out the missing word with a 'no' or a number (between zero and ten). You should write the numbers with english alphabet, like: four instead of 4.

Example Input: Cattle can have up to six to ____ years of grazing, after which a scrub savannah grows up.
Example Output: ten

Example Input: Arthritis is characterised by ____ major observable changes in the joints.
Example Output: four

Example Input: Armyworms consume tremendous amounts of grass in their last ____ days before pupating.
Example Output:
three