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: Conversations overlap, especially when more than three people try to talk in ____ room.
Example Output: one

Example Input: Tetrads come in ____ shapes.
Example Output: seven

Example Input: Man can go forty days without food but only ____ days without water.
Example Output:
three