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: Green energy comes in ____ basic forms.
Example Output: two

Example Input: Kinetic energy consists of ____ types of energies.
Example Output: three

Example Input: Gestation is eight months and a cow gives birth in the spring to ____ and sometimes twin calves.
Example Output:
one