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