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