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