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