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