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