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