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