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