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: Scientists think that macaws mate for life, producing one to ____ young each year.
Example Output: three

Example Input: Women are often gang-raped by groups of ____ or more, or are taken as sexual slaves.
Example Output:
ten