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