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