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