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