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