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