instruction:
Given a set of five words, generate the word from the set that does not belong (i.e. is the least relevant) with the other words. Words are separated by commas.
question:
happy, substance, shop, tools, content
answer:
happy


question:
egret, mallet, tackle, davit, crane
answer:
tackle


question:
fine, neat, bright, penalty, attractive
answer:

penalty