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