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