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

Input: Consider Input: Rheas are brownish instead of black like the ostrich and have _ toes instead of two.

Output: three

Input: Consider Input: Bacteria acquire genes conferring resistance in any of _ ways.

Output: three

Input: Consider Input: Flies normally have _ copies of the trp gene.
Output: two