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