You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "chile is an example of what kind of state?" whose answer is Unitary presidential constitutional republic.
Each document should contain about 30 words, and these documents should contain useful information.

Query: form of government in chile
Useful Output:

Doc 1: Chile's government is a representative democratic republic, whereby the President of Chile is both head of state and head of government, and of a formal
Doc 2: Chile's democratic tradition dates to the 19th century but the country experienced 17 years of authoritarian rule after General Augusto Pinochet
Doc 3: Chile is a stable democracy that has experienced a significant expansion of political rights and civil liberties since the return of civilian rule in 1990.
Doc 4: Local administration is the responsibility of the municipalities, which are composed of a mayor and a communal council, elected by popular vote.
Doc 5: Chile is one of South America's most stable and prosperous nations. It has been relatively free of the coups and arbitrary governments that have blighted the