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