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