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