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