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: weather 
Words: windy, stormy, fair, tone, tangle

SOLUTION: tone

PROBLEM: Category: moral characteristic 
Words: unprejudiced, texture, fair, impartial, well

SOLUTION: texture

PROBLEM: Category: mode of transportation 
Words: spider, wave, bus, bike, fly

SOLUTION:
spider