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: canvas, deck, corner, apron, queen
Example Output: queen

Example Input: heron, davit, egret, derrick, crane
Example Output: davit

Example Input: regular, universal, general, ubiquitous, private
Example Output:
private