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