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