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