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