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: fish, waggle, fly, dangle, glide

SOLUTION: glide

PROBLEM: Category: weather 
Words: fair, unprejudiced, raining, windy, endure

SOLUTION: unprejudiced

PROBLEM: Category: bird 
Words: duck, crane, concrete pourer, goose, neck

SOLUTION:
concrete pourer