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