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