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

Example Input: Triaxial fabric is woven with _ sets of yarn whose intersections form equilateral triangles.
Example Output: three

Example Input: Allergic rhinitis is the most common allergic disease, with one in _ Canadian adults affected.
Example Output: five

Example Input: Biologists believe that at least three, and perhaps all _ of the young successfully fledged.
Example Output:
four