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: hike, cow, trap, row, fish

SOLUTION: cow

PROBLEM: Category: corporate 
Words: corporation, firm, alignment, taut, leverage

SOLUTION: taut

PROBLEM: Category: aesthetic characteristic 
Words: ok, size, color, fair, level

SOLUTION:
ok