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.

[Q]: Category: baby animals 
Words: follow, colt, fawn, cub, calf
[A]: follow


[Q]: Category: guitar part 
Words: truss rod, fret, neck, bored, strap lock
[A]: bored


[Q]: Category: poker 
Words: queen, chips, knockout, call, deck
[A]:
knockout