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: Photons have ____ mass and no electrical charge.
Example Output: no

Example Input: Marine biologists have ____ theories on why whales breach.
Example Output: two

Example Input: Barn owls live from ____ to seven years.
Example Output:
five