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: animal 
Words: bus, leap, spider, run, fly

SOLUTION: bus

PROBLEM: Category: weather 
Words: windy, 70, mild, fair, loyal

SOLUTION: loyal

PROBLEM: Category: type of sandwich 
Words: hoagie, doorstep, roll, cinema, club

SOLUTION:
cinema