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: secretary duty 
Words: folder, support, order office supplies, correspondence, file

SOLUTION: folder

PROBLEM: Category: nutritional value 
Words: fat, protein, vitamin c, fiber, area

SOLUTION: area

PROBLEM: Category: bird 
Words: tackle, davit, swift, crane, steam roller

SOLUTION:
steam roller