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