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

Example Input: Pups consume an average of _ liters of milk a day .
Example Output: eight

Example Input: Some women describe their symptoms as feeling about _ months pregnant.
Example Output: four

Example Input: Elephants also have four molars, _ on the top and one on the bottom on both sides of the mouth.
Example Output:
one