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