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