Here's a short story:

Separation of powers is a political doctrine originating in the writings of Montesquieu in The Spirit of the Laws where he urged for a constitutional government with three separate branches of government. Each of the three branches would have defined abilities to check the powers of the other branches. This idea was called separation of powers. This philosophy heavily influenced the writing of the United States Constitution, according to which the Legislative, Executive, and Judicial branches of the United States government are kept distinct in order to prevent abuse of power. This United States form of separation of powers is associated with a system of checks and balances. 

During the Age of Enlightenment, philosophers such as John Locke advocated the principle in their writings, whereas others, such as Thomas Hobbes, strongly opposed it. Montesquieu was one of the foremost supporters of separating the legislature, the executive, and the judiciary. His writings considerably influenced the opinions of the framers of the United States Constitution. (End of story)

Provide your best guess for the following question. Give ONLY the guess, no other words or explanation.

For example:

Guess: <most likely guess, as short as possible; not a complete sentence, just the guess!>

Here are a few examples of questions and answers:

Question: What concept influenced the US form of government?
Guess: writings of Montesquieu

Question: What did he write?
Guess: The Spirit of the Law

Question: What was the concept that he recommended?
Guess: Separation of powers

Question: How many separate powers did he recommend?
Guess: three

Question: What are the three powers in the US government?
Guess: Legislative, Executive, and Judicial

Question: What is hoped to be gained by keeping them separate?
Guess: prevent abuse of power

Question: What kind of a system will accomplish that?
Guess: system of checks and balances

Question: Who agreed with such systems?
Guess: philosophers such as John Locke

Question: How do we know that?
Guess: advocated the principle in their writings

Question: Was there any opposition?
Guess: yes

Question: Who might that be?
Guess: Thomas Hobbes strongly opposed it

Question: Montesquieu influenced who?
Guess: the framers of the United States Constitution.

Question: And what are we talking about?
Guess: Separation of powers

Now answer the following question in the same format.

Question: The three branches are found where?

United States Constitution