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