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

Example Input: Every drug has _ names, a chemical name, a brand name, and an official name.
Example Output: three

Example Input: Lemurs live in troops of two and _ individuals.
Example Output: five

Example Input: Scientists expect all _ types of neutrinos to be emitted from a supernova.
Example Output:
three