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