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: Success is a function of ____ things.

Output: two


Input: Consider Input: Tics are about ____ times more common in boys than in girls.


Output: three