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