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