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