instruction:
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.
question:
Category: activity 
Words: fritter, sweet roll, whittle, seperate, divide
answer:
sweet roll


question:
Category: boats 
Words: lifeline, stern, fold, deck, rudder
answer:
fold


question:
Category: animal 
Words: dolphin, bat, cat, fish, hiking
answer:

hiking