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: moral characteristic 
Words: even, equitable, unprejudiced, fair, impartial

SOLUTION: even

PROBLEM: Category: mode of transportation 
Words: train, spider, wave, fly, drive

SOLUTION: spider

PROBLEM: Category: type of sandwich 
Words: roll, hoagie, bacon, club, community

SOLUTION:
community