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