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