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