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