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

Input: Consider Input: Bacteriophage lambda has _ different life cycles.

Output: two


Input: Consider Input: Diarrhea is an illness that kills _ and one-half million children per year.

Output: three


Input: Consider Input: Spiders have _ body segments, the abdomen and the cephalothorax.


Output: two