Your goal is to find the secret four-color code. The following colors are possible: black, green, white, yellow, brown, purple.
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: ['purple', 'white', 'black', 'green']. Hint: three colors are in the secret code but in the wrong positions.
Guess: ['black', 'black', 'yellow', 'white']. Hint: two colors are in the correct positions.
Guess: ['green', 'black', 'brown', 'white']. Hint: two colors are in the secret code but in the wrong positions.
A B C D
brown, white, white, black purple, brown, white, yellow black, green, yellow, purple brown, brown, purple, purple