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