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