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