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