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: Some clouds are so thick and dense that ____ stars can shine through.
Example Output: no

Example Input: Orangutans spend up to ____ hours a day eating or foraging for food.
Example Output: six

Example Input: Viremia lasts for approximately ____ days, but can last as long as twelve days.
Example Output:
five