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