Andrew: Good morning, may I help you?
Gordon: I'd like to buy some milk.
Andrew: O.K. 1. Which one would you like?
Gordon: I'm not sure. 2?
Andrew: Well, some kinds are for children, some are for women, and some are for old people.
Gordon: I see. It's for my daughter. She's three years old.
Andrew: Then these two are popular brands, but 3.
Gordon: Oh? Is Angel Face really better than Super Star?
Andrew: Well, their prices are different because Angel Face is a foreign brand, and Super Star is made in Taiwan.