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: Pyrimidines contain ____ ring and purines contain two rings.
Example Output: one

Example Input: Scientists divide the mosses into ____ groups .
Example Output: eight

Example Input: Women are five to ____ times more likely than men to suffer from a thyroid disorder.
Example Output:
eight