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