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