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.

[EX Q]: level, flat, apartment, squashed, lined
[EX A]: lined

[EX Q]: format, image, fax, file, folder
[EX A]: fax

[EX Q]: do tests, main, water, moon, current
[EX A]:
do tests