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