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