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