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