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