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