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