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