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

Example Input: Some people routinely sleep only _ hours a night but feel fine during the day.
Example Output: four

Example Input: Mares normally give birth to their first foal when they are between _ and six years of.
Example Output: three

Example Input: Plushies can be almost any size from a few inches to _ feet tall, or larger.
Example Output:
six