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