Your goal is to find the secret four-color code. The following colors are possible: red, black, white, brown, yellow, green.
Some guesses have already been made. I will provide feedback for each guess made with which it is possible to unambigiously determine the secret code.

Previous Guesses:
Guess: ['black', 'green', 'brown', 'white']. Hint: three colors are in the secret code but in the wrong positions.
Guess: ['red', 'black', 'black', 'brown']. Hint: two colors are in the correct positions.
Guess: ['yellow', 'white', 'black', 'brown']. Hint: two colors are in the secret code but in the wrong positions.
A B C D
green, black, green, white red, black, white, green red, brown, brown, black white, red, brown, brown