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