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