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