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