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