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