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