system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: if Coke is more popular, why do some restaurants only serve Pepsi?
gpt
Pepsi offered their product at a better price so they signed a contract.

And if somebody asks for coke, they'll just say: oh we don't have, what about Pepsi? and nobody says NOOOOOOOOOOOO THERE'S SUCH A BIG DIFFERENCE AAAAAAAAAAAAAAAAAA THIS IS UNACCEPTABLE!