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