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