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