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