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: activity 
Words: divide, croquet, fritter, squander, spend

SOLUTION: croquet

PROBLEM: Category: animal 
Words: shark, dolphin, fish, hunting, cat

SOLUTION: hunting

PROBLEM: Category: ocean 
Words: moon, current, tide, data sets, wave

SOLUTION:
data sets