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