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