TASK DEFINITION: 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.
PROBLEM: Category: outdoor sport activity 
Words: fish, hiking, row, shark, canoe

SOLUTION: shark

PROBLEM: Category: police punishment 
Words: fine, prime, firstrate, comfortable, ticket

SOLUTION: comfortable

PROBLEM: Category: chocolate food 
Words: brownies, brownie, cake, loosen, fudge

SOLUTION:
loosen