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