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