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