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