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

Input: Consider Input: Category: moral characteristic 
Words: unprejudiced, texture, fair, impartial, well

Output: texture


Input: Consider Input: Category: construction 
Words: hoist, crane, excavator, egret, derrick

Output: egret


Input: Consider Input: Category: emotional status 
Words: fret, bored, sad, frustrated, chord


Output: chord