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