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