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