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