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