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