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