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