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: bird 
Words: swift, tackle, pelican, crane, hoist

Output: hoist


Input: Consider Input: Category: alcoholic drinks 
Words: gin, tonic, rum, spider, tequila

Output: spider


Input: Consider Input: Category: bird 
Words: davit, ostrich, duck, concrete pourer, crane


Output: concrete pourer