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