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