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