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