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]: crane, ostrich, davit, dump truck, pelican
[A]: dump truck


[Q]: bowl, plastic, glass, panel, lead
[A]: bowl


[Q]: elevation, flat, horizontal, mountain, squashed
[A]:
squashed