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