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