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