Classify each of the following countries as either democratic or authoritarian: USA, Russia, China, Sweden, UK.
According to the Democracy Index, compiled by the Economist Intelligence Unit (EIU) USA, Sweden and UK are fully democratic countries  whereas Russia and China belong to authoritarian regimes.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.
### Instruction: Classify each of the following countries as either democratic or authoritarian: USA, Russia, China, Sweden, UK.
### Input: 
### Response: According to the Democracy Index, compiled by the Economist Intelligence Unit (EIU) USA, Sweden and UK are fully democratic countries  whereas Russia and China belong to authoritarian regimes.