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: Elephants rise ____ inches when they inhale.
Example Output: two

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

Example Input: All insects have ____ pairs of legs and adult wings.
Example Output:
three