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