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