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: bird 
Words: concrete pourer, flamingo, egret, crane, duck
answer:
concrete pourer


question:
Category: physical property 
Words: fat, area, ugly, capacitance, calcium
answer:
calcium


question:
Category: weather 
Words: size, raining, windy, 70, fair
answer:

size