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: secretary duty 
Words: schedule, file, answer calls, correspondence, ram
answer:
ram


question:
Category: physical activity 
Words: drop, fall, leaves, bend, exercise
answer:
leaves


question:
Category: animal 
Words: hunting, hamster, dolphin, tiger, fish
answer:

hunting