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: Tall fescue produces the ____ diazaphenanthrene alkaloids, perlolidone and perloline.
Example Output: two

Example Input: Potential energy is divided into ____ different types of energy.
Example Output: three

Example Input: Liquids usually descend in ____ to five seconds, and solids in eight to twenty seconds.
Example Output:
three