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