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: Cichlids are popular in the aquarium hobby for a ____ reason.

Output: four


Input: Consider Input: Soy products contain ____ known classes of anti-cancer agents, including phytoestrogens.

Output: five


Input: Consider Input: Meteorologists rely mainly on ____ types of satellites.


Output: two