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: bird 
Words: flamingo, crane, upraise, winch, goose

SOLUTION: upraise

PROBLEM: Category: guitar part 
Words: frustrated, amp, string, fret, headstock

SOLUTION: frustrated

PROBLEM: Category: accomodation 
Words: paved, mansion, plane, flat, even

SOLUTION:
plane