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