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