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