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