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]: space, file, answer calls, fax, support
[A]: space


[Q]: group, blt, french toast, hamburger, club
[A]: group


[Q]: fish, raft, dolphin, sea turtle, stingray
[A]:
raft