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