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