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: Wind is renewable, and produces ____ emissions or by-products.

Output: no


Input: Consider Input: Marine biologists have ____ theories on why whales breach.

Output: two


Input: Consider Input: Light drives the interconversion of ____ forms of phytochroms.


Output: two