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: Bond angles The bond angle defined by ____ atoms is calculated.
Example Output: three

Example Input: Milk contains ____ complex carbohydrates.
Example Output: zero

Example Input: All sugars contain ____ calories per gram.
Example Output:
four