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