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