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: Most babies double their birthweight by ____ to five months.
Example Output: four

Example Input: Cats have five toes on their front paws, but only ____ touch the ground when walking.
Example Output: four

Example Input: Japan is home to ____ percent of the world's active volcanoes.
Example Output:
ten