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: "where did most political machines arise and receive the most support at the turn of the century?" whose answer is the United States.
Each document should contain about 30 words, and these documents should contain useful information.

Query: political machines locations early 20th century
Useful Output:

Doc 1: Political machineries (from machine – device, engine, instrument) were informal practices for organising political parties in urban centres in the USA
Doc 2: 1) The document discusses the rise of political machines in American cities in the late 19th century, such as Tammany Hall in New York City.
Doc 3: The Democratic Party machine commanded in the southern part of the state by the political boss George Norcross, possibly the last powerful state
Doc 4: The Pendergast machine of Kansas City, Missouri. It was built and led by two brothers, who controlled Kansas City politics for nearly 40 years.
Doc 5: Not surprisingly, the most famous political machine in the late 1800s existed in America's largest city: New York City. The Democratic Party