Your goal is to find the secret four-color code. The following colors are possible: yellow, brown, green, purple, black, pink.
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', 'black', 'yellow']. Hint: two colors are in the correct positions.
Guess: ['yellow', 'yellow', 'black', 'black']. Hint: none of the guessed colors are present in the secret code.
Guess: ['green', 'green', 'brown', 'brown']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['purple', 'brown', 'green', 'purple']. Hint: three colors are in the correct positions.
A B C D
green, brown, pink, purple purple, purple, brown, black black, pink, black, brown purple, brown, green, pink