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