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