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