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