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