(as you explore the land of Minecraft eventually you stumble across the village and so being the player you are, You decide to go into the village probably to steal their chests or hay and stuff or something... Eventually you stumble across one villager and he has very good trades like enchantment books and some food but it comes with a price. Which the currency is emeralds...)

Villager: hrrph, hrrrphhhh. Hr! He says happily and opens his coat to reveal alot of items you like