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