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