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