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