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