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