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