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