In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

Example Input: Diatoms look like _ shells that fit together.
Example Output: two

Example Input: Cockatiels average _ to five eggs per nest, with an egg typically laid every other day.
Example Output: four

Example Input: Coyotes eat _ to three pounds of food a day.
Example Output:
two