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