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