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