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