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