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: Romantic love involves ____ people.

Output: two


Input: Consider Input: Monatomic elements have with ____ atoms in each per molecule.

Output: three


Input: Consider Input: Most ceramics are made up of ____ or more elements.


Output: two