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