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