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.

Ex Input:
Category: emotional display 
Words: follow, doe, suppressed, culture, fawn

Ex Output:
doe


Ex Input:
Category: window material 
Words: glass, coating, panel, spatula, lead

Ex Output:
spatula


Ex Input:
Category: animal 
Words: fly, leap, run, jog, ant

Ex Output:

jog