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