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