instruction:
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.
question:
Category: consumer product 
Words: shop, tools, happy, service, content
answer:
happy


question:
Category: boxing terminology 
Words: apron, punch, deck, canvas, call
answer:
call


question:
Category: ocean 
Words: main, drink, flow, late, current
answer:

late