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