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: bird 
Words: neck, tackle, derrick, crane, steam roller

SOLUTION: steam roller

PROBLEM: Category: store status 
Words: beside, finished for the day, running., close, gated

SOLUTION: beside

PROBLEM: Category: body part 
Words: heel, shin, pound, finger, foot

SOLUTION:
pound