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