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