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