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: kitchenware 
Words: glass, colander, dish, plate, panel

SOLUTION: panel

PROBLEM: Category: ocean 
Words: current, early, water, brine, tide

SOLUTION: early

PROBLEM: Category: measurement unit 
Words: meter, foot, head, mile, pound

SOLUTION:
head