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