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