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: emotional status 
Words: truss rod, emotional supports, emotional upsets, emotionalities, fret

Output: truss rod


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

Output: texture


Input: Consider Input: Category: mode of transportation 
Words: fly, flutter, glide, flap, eagle


Output: eagle