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