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