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: Niobium occurs primarily in ____ minerals, columbite and pyrochlore.

Output: two


Input: Consider Input: Some species take ____ to two years, or even more.

Output: one


Input: Consider Input: Rabbits have a total of ____ teeth rather than four, as is characteristic of rodents.


Output: six