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: social gathering 
Words: club, bar, dance hall, discothek, roll
answer:
roll


question:
Category: secretary duty 
Words: file, errands, type, folder, order office supplies
answer:
folder


question:
Category: poker 
Words: caution, blind, deck, pack, chips
answer:

caution