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