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