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: animal 
Words: goat, stingray, tiger, hike, fish
answer:
hike


question:
Category: social gathering 
Words: group, clan, team, club, doorstep
answer:
doorstep


question:
Category: bird 
Words: davit, digger, heron, hoist, crane
answer:

digger