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