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