Given a set of five words, generate the word from the set that does not belong (i.e. is the least relevant) with the other words. Words are separated by commas.

Q: mallet, winch, parrot, winch, crane

A: winch
****
Q: basic, general, common, plain, admiral

A: admiral
****
Q: convention, club, grilled cheese, discothek, clan

A:
grilled cheese
****