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.

Input: Consider Input: Coastal kelp beds, for example, appear to be three times larger than in the past four or ____ years.

Output: five


Input: Consider Input: Some adjectives have ____ forms, others have four.

Output: two


Input: Consider Input: Birds can have ____ to twelve primaries, but the most common number is ten.


Output: nine