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