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