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.

Category: bird 
Words: crane, pelican, egret, hummingbird, upraise
upraise

Category: activity 
Words: spend, divide, apple, whittle, fritter
apple

Category: police punishment 
Words: firstrate, penalty, fine, comfortable, jail time

comfortable