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