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