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: construction 
Words: dump truck, swift, crane, upraise, windlass

SOLUTION: swift

PROBLEM: Category: widespread 
Words: boring, common, soldier, general, average

SOLUTION: soldier

PROBLEM: Category: boats 
Words: galley, bow, deck, crew, cards

SOLUTION:
cards