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