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