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: ['purple', 'black', 'red', 'green']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['yellow', 'yellow', 'purple', 'black']. Hint: two colors are in the correct positions.
Guess: ['yellow', 'pink', 'green', 'black']. Hint: three colors are in the secret code but in the wrong positions.
A B C D
black, pink, purple, green green, yellow, yellow, red green, yellow, purple, pink black, black, black, pink