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