Given a set of five words, generate the word from the set that does not belong (i.e. is the least relevant) with the other words. Words are separated by commas.

Example Input: fawn, love, calf, flatter, identity
Example Output: calf

Example Input: fly, glide, flutter, eagle, train
Example Output: eagle

Example Input: fire, recruit, ban, praise, blaze
Example Output:
blaze